Terms of Service

Last updated: 30 April 2026

This English version is the binding version of the Terms of Service. The provider is Julian Bokelmann (see Legal Notice). Mandatory provisions of the consumer's local law remain unaffected.

§ 1 Scope of application, contracting parties

(1) These Terms of Service govern the use of the Android application "Card Shuffle" (also marketed as "Deck Builder", hereinafter the "App") and the in-app feature "Deck Store" (hereinafter the "Service").

(2) The provider of the Service is Julian Bokelmann (trading name: Julian Bokelmann IT Solutions), a sole proprietor based in Germany (hereinafter the "Provider"). The full mailing address, VAT status and other mandatory information under § 5 of the German Digital Services Act (DDG) are set out in the Legal Notice.

(3) "User" within the meaning of these Terms means any natural person who installs the App on a mobile device or accesses content in the Deck Store.

(4) The Provider acts as a trader towards consumers within the meaning of § 14 of the German Civil Code (BGB). A consumer is any natural person who enters into a transaction for purposes that are predominantly outside their trade, business or profession (§ 13 BGB).

(5) The Provider grants the User a limited, revocable, non-exclusive and non-transferable license to use the App for personal, non-commercial purposes on a personal device. All commercial protection rights and other rights in the App remain with the Provider.

§ 2 Subject matter of the contract

(1) The Provider makes the App available free of charge in the Google Play Store. The App enables Users to create, manage, shuffle and simulate their own card decks.

(2) Within the App, the Provider operates the Deck Store, a user-generated-content platform where Users may publish their own decks and download decks shared by other Users free of charge. Publishing decks requires a valid Pro Subscription or a Pro Lifetime Purchase (§ 6). Reading, searching and downloading does not require a subscription.

(3) The Provider is not the manufacturer, publisher or licensor of the content uploaded by Users. The Provider reviews published decks before release (manual review). This review serves to enforce these Terms and does not replace any review of the uploading User's copyright, trademark or related rights.

§ 3 Use of the App and the Deck Store

(1) The User must use the App and the Deck Store only within the scope of these Terms and applicable law.

(2) Magic: The Gathering cards via Scryfall. When the User accesses MTG cards, the card images are embedded via the publicly available API of Scryfall (Scryfall LLC, USA). The image files are not stored or reproduced by the Provider, but are loaded on demand directly from *.scryfall.io to the User's device. As between Provider and User, Scryfall is the host of the images within the meaning of § 8 DDG / Art. 6 DSA. The case law of the German Federal Court of Justice on hyperlink liability (BGH "Paperboy", I ZR 259/00; BGH "Vorschaubilder I", I ZR 69/08) applies accordingly.

(3) Fan content notice. The Wizards of the Coast Fan Content Policy requires a mandatory notice that forms part of the licensing terms under which the Provider may use Scryfall's data and images. The required wording is:

Card Shuffle is unofficial Fan Content permitted under the Wizards of the Coast Fan Content Policy. Card Shuffle is not approved or endorsed by Wizards of the Coast or by Scryfall.

This notice may not be removed or altered by the User.

(4) The Provider may temporarily restrict access to individual functions without prior notice where this is necessary for security, maintenance or legal reasons.

(5) The following uses of the App and the Service are not permitted:

1. reverse-engineering, decompiling or disassembling the App, except where this is permitted by mandatory law (§ 69e of the German Copyright Act, UrhG);
2. modifying, distributing or sublicensing the App;
3. circumventing technical locks or restrictions, including the three-deck limit for free Users and the cloud sync quotas;
4. interfering with or impairing the operation of the App, the servers or other Users;
5. submitting deliberately false or abusive notices under § 7.

§ 4 Minimum age, registration, username

(1) Publishing content in the Deck Store is permitted only for persons who have completed their 16th year of age (Art. 8 GDPR). Before the first publishing action, the User actively confirms this in the publishing wizard.

(2) Registration uses sign-in with a Google account (Firebase Authentication). From this sign-in, the Provider receives the Google user ID, the registered email address and the display name. No further identifying information is collected (see Privacy Policy).

(3) The User chooses a public username under which their published decks are displayed. Reserved usernames (e.g. admin, support, legal, as well as protected brand names such as wizards, pokemon, scryfall, disney, etc.) are excluded. Usernames that improperly identify or could be confused with natural persons, brands or organizations will be rejected by the Provider or subsequently changed.

(4) The User is responsible for keeping their access credentials confidential.

§ 5 Content uploaded by the User

§ 5.1 What you may upload

(1) You may publish the following content as cards in a deck in the Deck Store:

1. cards with images you created yourself;
2. cards with third-party images for which you hold a valid license or whose use is permitted under copyright law;
3. cards with public-domain images or images under an open license (CC0, CC-BY, CC-BY-SA, for the latter with proper artist credit in the card information);
4. MTG cards added exclusively via the Scryfall search integrated in the App.

§ 5.2 What you may not upload

(1) The following content is not permitted and will be rejected during the manual review:

1. images for which you do not hold sufficient rights (RIGHTS_UNCLEAR);
2. images that fully or substantially reproduce official cards from commercial trading card games (e.g. Pokémon TCG, Yu-Gi-Oh!, Disney Lorcana, Flesh and Blood, One Piece TCG, Marvel Snap, as well as Magic: The Gathering if not embedded via the Scryfall search), including in the context of so-called "Fan Content" (TCG_OFFICIAL_ART / MAGIC_USE_SCRYFALL);
3. sexual, sexualized or sexually suggestive depictions that exceed what is customary in a PEGI-12 trading card game context (SEXUAL_CONTENT);
4. any depiction that violates § 184b of the German Criminal Code (StGB) (child sexual abuse material); such content will consistently be reported to law enforcement (CSAM);
5. realistic depictions of violence that violate § 131 StGB (REALISTIC_VIOLENCE);
6. symbols of unconstitutional organizations (§ 86a StGB), propaganda materials of unconstitutional organizations (§ 86 StGB) or content amounting to incitement to hatred (§ 130 StGB) (EXTREMIST_CONTENT / HATE_SPEECH);
7. personal data of third parties without their consent, in particular images of identifiable persons (§ 22 of the German Art Copyright Act, KunstUrhG; Art. 6 GDPR) and real names, addresses or contact details of third parties (PERSONAL_DATA);
8. defamatory, slanderous or libelous statements of fact about identified natural persons (§§ 185 et seq. StGB) (DEFAMATION);
9. content with a phishing, scam, malware or fraud character, including QR codes with unknown destinations, URL shorteners and prompts to disclose sensitive data outside the App (MALWARE_FRAUD);
10. trademarks, logos or quasi-official designations of third parties insofar as their use could create the impression of an official license (Art. 14, 15 of the German Trademark Act, MarkenG; § 5 of the German Unfair Competition Act, UWG) (IMPLIES_ENDORSEMENT);
11. advertising or promotion of real-money gambling, illegal drug trade, illegal weapons trade or other prohibited activities (PROHIBITED_GOODS);
12. content that glorifies or instructs in self-harm, suicide or eating disorders (SELF_HARM_CONTENT);
13. verbatim or substantially unchanged republication of another User's deck without your own creative contribution (DUPLICATE_DECK);
14. any other content whose distribution violates applicable German or EU law.

(2) The list in paragraph 1 is non-exhaustive. The Provider reserves the right to reject or subsequently remove content that conflicts with these Terms or the spirit of the platform.

§ 5.3 AI-assisted content

(1) Images created with the help of AI tools (e.g. Midjourney, DALL-E, Stable Diffusion, Imagen) are expressly welcome in the Deck Store. Before publishing, the User may optionally flag the deck as AI-assisted; this flag is voluntary and helps other Users discover such works.

(2) Because, under the current view of the U.S. Copyright Office (notice Copyright and Artificial Intelligence, Part 2: Copyrightability, January 2025), purely AI-generated content does not regularly enjoy copyright protection, the User grants the Provider and other Users, in lieu of a copyright license, a representation and indemnification undertaking with respect to purely AI-generated images: the User declares that they hold all rights necessary for publication, whether based on copyright, the terms of the AI tool used, contractual rights to the prompt or the public domain, and indemnifies the Provider against third-party claims arising from a breach of this representation.

(3) The Provider does not assert any copyright of its own in the AI image; any protection in the selection and arrangement of cards within the deck (compilation copyright) remains unaffected.

§ 5.4 Rights you grant to us

(1) By publishing a deck, you grant the Provider and all Users who download your deck the following non-exclusive, worldwide, royalty-free rights:

1. the right to store, transmit, cache and display your deck and its images within the App, in result lists and on the deck detail page, and to create technically required previews (e.g. blurred thumbnails);
2. the right to store the content on the downloading Users' devices and make it available for offline use, including the necessary sublicense to the downloading Users for that purpose;
3. the right to remove the deck or individual cards upon a specific notice of infringement or an order from a competent authority.

(2) The rights granted are limited to the use necessary for providing the Service. Any further independent exploitation by the Provider (e.g. advertising use, inclusion in collective works of the Provider) is not covered by this grant.

(3) The grant of rights begins upon publication and continues for the lifetime of the published version plus 90 days after its removal (backup retention).

§ 5.5 Rights you retain

(1) You retain your copyright and other rights in the content you upload. Insofar as the deck as a collective work (§ 4 UrhG) or the underlying database (§§ 87a et seq. UrhG) is eligible for copyright protection, you are the author or database producer.

(2) You may remove individual versions of your deck or the entire deck from the Deck Store at any time ("withdraw"). Copies already downloaded to other Users' devices cannot be recalled by the Provider; the right of downloaders to continue offline use under § 5.4(1)(b) remains unaffected.

§ 5.6 Remixes and source attribution

(1) Other Users may use your published deck as a basis for a derivative work ("Remix"), provided that they:

1. make substantial changes to the deck (changes to the card pool, their own description text, their own name);
2. credit the original creator with a source attribution, e.g. "Based on '[Original Deck]' by [Creator]". The App's "Remix this deck" function automatically inserts this attribution;
3. publish the remix under the same conditions as the original deck.

(2) Verbatim or substantially unchanged republication of a deck without your own creative contribution (DUPLICATE_DECK) is not permitted and will be rejected during the manual review.

(3) You may disable remixes for your published deck in its settings.

§ 5.7 Use of downloaded decks

(1) By downloading a deck, you receive a personal, non-commercial license to use the deck exclusively within the Card Shuffle app.

(2) You are not entitled to:

1. further distribute the deck or its contents unchanged, including via the App's "local export" function (.dbpd file) to third parties;
2. use the deck or images from it for commercial purposes;
3. remove or falsify attribution to the artists or the original creator.

(3) The local export (.dbpd file) is permitted exclusively for personal data backup.

§ 5.8 Decks are free

(1) All decks in the Deck Store are downloadable free of charge for other Users. The Provider pays creators no compensation for their decks. The Pro entitlement required for publishing (§ 6) is consideration for using the Provider's service (publishing function), not compensation for the decks themselves.

§ 6 Pro Subscription and Pro Lifetime

§ 6.1 Description of services

(1) With an active Pro entitlement (Pro Subscription under paragraph 3 or Pro Lifetime Purchase under § 6.5), the User receives:

1. the right to publish any number of their own decks in the Deck Store (subject to manual review), but no more than three publications per day;
2. the lifting of the local three-deck limit, allowing any number of decks to be stored locally;
3. the entitlement to enable Cloud Synchronization (§ 6.6).

(2) Reading, searching and downloading decks from the Deck Store, shuffling, the MTG card search via Scryfall and all core functions of the App are always available without a Pro entitlement. In this respect the Provider undertakes that no function granting access to MTG data from Scryfall will be hidden behind the Pro paywall (Scryfall API terms).

(3) The Pro Subscription is purchased and managed via the Google Play Store. The contractual partner for payment processing is Google (Merchant of Record). The Provider receives a purpose-bound payout from Google; there is no direct payment relationship between User and Provider.

(4) The subscription renews automatically at the end of the relevant billing period unless cancelled beforehand. Cancellation is possible at any time via the subscription management of the Google Play Store; it takes effect at the end of the current billing period.

(5) Because the contract is concluded exclusively via the Google Play Store, the cancellation button under § 312k BGB cannot be provided on a website of the Provider; the button required for cancellation is located in the subscription management of the Google Play Store. Should the Provider in future open its own website through which a subscription can be concluded, a § 312k-compliant cancellation button will be made available there.

§ 6.2 Order button (§ 312j BGB)

(1) In the Google Play Store, the paid order of the Pro Subscription or Pro Lifetime Purchase is triggered by a button whose label, provided by Google, meets the requirements of § 312j(3) BGB ("zahlungspflichtig bestellen" / "order subject to payment", or an equivalent wording such as "Subscribe" / "Buy"). If the requirement is exceptionally not met, the contract does not come into existence under § 312j(4) BGB and the User does not owe any payment.

(2) Before clicking the order button, Google displays to the User the essential characteristics, the total price (including taxes), the contract term, automatic renewal and information on the right of withdrawal (Art. 246a § 1 of the Introductory Act to the German Civil Code, EGBGB).

§ 6.3 Right of withdrawal (for consumers habitually resident in the EU)

Right of withdrawal. You have the right to withdraw from this contract within fourteen days without giving any reason. The withdrawal period is fourteen days from the day the contract was concluded.

To exercise your right of withdrawal, you must inform us (Julian Bokelmann, Steinrathshof 24, 41239 Mönchengladbach, Germany; email: jbokman95+legal@gmail.com) by means of a clear statement (e.g. a letter sent by post or an email) of your decision to withdraw from this contract. You may use the attached model withdrawal form (Annex 2 to Art. 246a § 1(2) sentence 1 no. 1 EGBGB), but this is not mandatory. To meet the withdrawal deadline, it is sufficient that you send the communication concerning your exercise of the right of withdrawal before the withdrawal period expires.

Consequences of withdrawal. If you withdraw from this contract, we shall reimburse you all payments received from you without undue delay and at the latest within fourteen days from the day on which we received the notification of your withdrawal. Because the contract was concluded via the Google Play Store, you may also exercise the withdrawal directly in the Google Play Store; in that case, Google will refund the payment to you without delay.

Expiry of the right of withdrawal (§ 356(5) BGB). For contracts on the supply of digital content or digital services not delivered on a tangible medium, the right of withdrawal expires if:

1. you have given your express consent to performance of the contract beginning before the withdrawal period expires;
2. you have acknowledged that, by giving your consent, you lose the right of withdrawal once performance has begun;
3. the Provider has provided you with that confirmation on a durable medium in accordance with § 312f(3) BGB.

These three conditions are satisfied in the order process of the Google Play Store: there you give your consent that Pro functionality is made available immediately, you confirm the resulting consequence for your right of withdrawal, and you receive a corresponding confirmation message from Google.

§ 6.4 Refund via Google Play

(1) Outside the statutory right of withdrawal, you may also request a refund via the refund function offered in the Google Play Store. Refunds are processed by Google in accordance with the Google Play refund policies.

(2) In the event of early termination of the contract through a valid withdrawal before the right of withdrawal expires (§ 6.3), a pro-rata refund is granted in accordance with § 357(8) BGB.

§ 6.5 Pro Lifetime Purchase

(1) Instead of a recurring Pro Subscription (§ 6.1), the User may alternatively make a Pro Lifetime Purchase. This is a single, non-recurring payment via the Google Play Store.

(2) The Pro Lifetime Purchase grants access to the Pro features for the operational lifetime of the App. No guarantee of perpetual availability or continued development is given. If the Service is discontinued, the provisions of § 11 apply accordingly; there is no claim to a refund of the purchase price due to discontinuation, except where mandatorily required by law.

(3) The provisions on the order button (§ 6.2), the right of withdrawal and its expiry (§ 6.3) and the refund (§ 6.4) apply to the Pro Lifetime Purchase accordingly.

§ 6.6 Cloud Synchronization (Pro feature)

(1) Holders of an active Pro Subscription (§ 6.1) or a Pro Lifetime Purchase (§ 6.5) may enable Cloud Synchronization, by which decks, cards, collections and tags are synchronized between devices and backed up on the Provider's servers (Firebase / Google Cloud).

(2) Cloud Synchronization requires:

1. an active Pro entitlement under § 6.1 or § 6.5;
2. sign-in with a Google account (see § 4(2));
3. an active internet connection.

(3) Fair-use limits. Cloud Synchronization is subject to fair-use limits on the number of decks, the number of cards and the storage volume. If these limits are exceeded, uploads are paused; downloads remain available. Storage space can be freed up by deleting content.

(4) Expiry of the Pro Subscription. When the Pro Subscription ends, Cloud Synchronization is automatically disabled. Existing cloud data is not deleted and becomes accessible again upon a renewed Pro Subscription (§ 6.1).

(5) Disabling synchronization. The User may disable Cloud Synchronization at any time in the account settings. Upon confirmation of disabling, the cloud data stored on the Provider's servers is irreversibly deleted. Local data on the device is not affected. If the User wishes to keep their cloud data without continuing to synchronize, the User should not disable synchronization; in that case, it is sufficient not to open the App or to keep the device offline.

§ 6.7 Warranty rights, update obligation, minimum requirements

(1) Warranty rights. Insofar as the Pro features were acquired against payment, consumers are entitled to the statutory warranty rights for digital products under §§ 327 et seq. BGB. In the event of a defect in the digital products, the User is entitled to supplementary performance; if this fails, to a price reduction or termination of the contract and, where applicable, damages in accordance with § 9.

(2) Update obligation (§ 327f BGB). The Provider supplies the User with updates necessary to maintain the conformity of the App, including security updates:

1. for the entire term of an active Pro Subscription (§ 6.1);
2. for the Pro Lifetime Purchase (§ 6.5) for a period that the User may reasonably expect given the nature and purpose of the App and taking into account the circumstances and the nature of the contract, but at minimum two years from the day of supply;
3. for the free use of the App without a Pro entitlement, to the extent required to maintain the feature scope and at the Provider's discretion.

(3) Minimum device requirements (§ 327d BGB). Proper use of the App requires:

1. an Android device running Android 9 (API level 28) or higher;
2. an active internet connection for online functions (sign-in, Cloud Synchronization, Deck Store, Scryfall search);
3. a current version of Google Play services installed.

The App is intended for use under the conditions in (a) to (c). Functionality on devices that do not meet these minimum requirements is not warranted.

(4) Guarantees. The Provider does not assume any independent guarantees within the meaning of § 443 BGB. Statements in the App description or in advertising or marketing materials (e.g. "Completely Ad-Free") bind the Provider as part of the statutory agreement on quality; no further guarantee assumption is associated with such statements.

(5) Ad-free guarantee. The Provider warrants that the App is operated free of advertising for the term of these Terms. In particular, no banners, pop-ups, interstitials or sponsored content are displayed. References to the Provider's own Pro features or to the Deck Store are not deemed advertising within the meaning of this clause.

§ 7 Notices and measures against illegal content (Art. 16 et seq. DSA)

§ 7.1 Notice procedure

(1) Any person, including without an account, may notify the Provider of allegedly illegal content in the Deck Store. Notices may be submitted:

1. on the relevant deck or card, via the in-app "Report" button;
2. by email to jbokman95+legal@gmail.com;
3. via the web form at forms.gle/4hnTCmMQJcDGyM487.

(2) An effective notice within the meaning of Art. 16 DSA should contain:

1. a statement of reasons for the alleged illegality;
2. a precise identification of the content (deck ID / card ID / username);
3. the name and contact details of the notifier, except in cases concerning § 184b StGB, where anonymous notices are expressly permitted;
4. a good-faith declaration as to the accuracy of the information.

§ 7.2 Handling

(1) Receipt of a notice is acknowledged without undue delay (receipt confirmation). Notices are processed in a timely, diligent and non-arbitrary manner (Art. 16(3) DSA).

(2) If content is removed, restricted or otherwise moderated, the uploader is provided with a statement of reasons ("Statement of Reasons", Art. 17 DSA), including the legal basis, the scope of the measure, the duration of any restriction and the possibilities of appeal.

(3) The Provider keeps a confidential audit log of every notice and every decision. The retention period is three years.

§ 7.3 Complaint procedure / counter-notice

(1) Where the Provider has removed or restricted a User's content, the affected User may lodge an objection within 30 days of receipt of the "Statement of Reasons" by replying via email to jbokman95+legal@gmail.com. The Provider examines the objection on the merits and not in an automated manner.

(2) If the objection is rejected, the User may resort to the courts. Out-of-court dispute resolution is offered upon request to the extent that a certified body under Art. 21 DSA is available.

(3) Consumers habitually resident in the EU may additionally turn to the data protection supervisory authority of their member state (Art. 77 GDPR).

§ 7.4 Notices about other Users

(1) In addition to the notice procedure under § 7.1, the User may also report other Users for impermissible usernames (§ 4(3)) or for breaches of these Terms. Such reports may be submitted via the in-app "Report user" button or by email to jbokman95+legal@gmail.com.

(2) Reports must be submitted in good faith with a comprehensible justification. Deliberately false or abusive reports may themselves lead to measures under § 8.

(3) The Provider examines reports diligently and in a non-arbitrary manner. Possible measures include changing or revoking a username (§ 4(3)) and suspending or permanently closing the account (§ 8). Measures are communicated to the affected User with reasons; the right of complaint under § 7.3 applies accordingly.

§ 7.5 Trusted Flaggers (Art. 22 DSA)

(1) Notices submitted by persons or entities to whom the Digital Services Coordinator of an EU member state has awarded the status of a Trusted Flagger within the meaning of Art. 22 DSA are processed by the Provider with priority and treated preferentially (Art. 22(1) DSA).

(2) Trusted Flagger status must be indicated when submitting the notice (e.g. by reference to the entry in the publicly accessible database maintained by the Digital Services Coordinator). The Provider reserves the right to verify the entry.

(3) If the Provider repeatedly observes a significant number of insufficiently precise, inaccurate or insufficiently substantiated notices from a Trusted Flagger, the competent Digital Services Coordinator will be informed in accordance with Art. 22(6) DSA.

§ 8 Suspension and termination of the User account

(1) The Provider may temporarily suspend or permanently exclude a User if the User materially breaches these Terms, in particular in case of repeated or serious breaches of § 5.2 (e.g. breaches of §§ 184b, 86a, 130 StGB).

(2) The suspension is communicated to the User with reasons, to the extent legally permissible and not detrimental to investigations. The right of complaint under § 7.3 applies accordingly.

(3) On permanent suspension, published decks are removed from the Deck Store; copies already downloaded to other Users' devices remain unaffected (§ 5.5(2)).

(4) The User may end their account at any time. Termination is requested by sending an email to jbokman95+privacy@gmail.com with the subject line "Account Deletion Request". The request must be sent from the email address associated with the account to be deleted (identity verification via the authenticated sender). Requests from other addresses are rejected or processed only after additional identity verification. The Provider processes the request within 30 days. An additional in-app function "Settings → Account → Delete Account" is being prepared and will become available as a second path once implemented. The consequences of termination are set out in the Privacy Policy.

(5) Account inactivity. If an account is not used for a period of at least 24 months, neither by sign-in nor by any other action, the Provider may set the account to a dormant state. Already published decks remain accessible to other Users in the dormant state, provided they do not breach § 5.2. The User is notified by email before being set to the dormant state and is given a period of 30 days to reactivate. If the User also does not respond within a further 12 months, the Provider may permanently delete the account and the associated data. The Privacy Policy remains unaffected.

(6) Inheritance. In the event of the User's death, the rights and obligations associated with the account pass to the heirs as part of the estate (§ 1922 BGB). Heirs may request takeover or deletion of the account from the Provider by email to jbokman95+legal@gmail.com, submitting a certificate of inheritance or a comparable proof. Until inheritance rights are asserted, the account remains dormant; already published decks remain available.

§ 9 Liability

(1) The Provider has unlimited liability for damages arising from injury to life, body or health that are based on a negligent breach of duty by the Provider or on an intentional or negligent breach of duty by a legal representative or vicarious agent of the Provider.

(2) The Provider has unlimited liability for other damages based on an intentional or grossly negligent breach of duty by the Provider or on an intentional or grossly negligent breach of duty by a legal representative or vicarious agent.

(3) The Provider is also liable for the slightly negligent breach of material contractual obligations ("cardinal obligations"), that is, obligations whose performance makes the proper performance of the contract possible in the first place and on whose observance the User regularly relies. In such cases, liability is limited to the foreseeable damages typical for this type of contract.

(4) Otherwise, the Provider's liability is excluded.

(5) Liability under the German Product Liability Act (Produkthaftungsgesetz) and under §§ 327 et seq. BGB for the supply of digital products remains unaffected.

§ 10 Force majeure

(1) The Provider is not liable for any delay or failure of the Service caused by events outside its reasonable sphere of control, in particular natural disasters, war, strikes, official orders, internet or power outages, and the failure, material change in terms or discontinuation of essential upstream services (e.g. the Scryfall API, the Firebase platform, Google Play, RevenueCat).

(2) § 9(1), (2) and (5) remain unaffected by paragraph 1.

(3) In the event of prolonged disruptions, the Provider will inform the User and, where appropriate, decide on options for partial refunds or other adjustments to the contract.

§ 11 Discontinuation of the Service

(1) The Provider reserves the right to discontinue individual functions or the Service as a whole subject to a notice period of at least 90 days. The announcement is made via the App's WhatsNewDialog, the website and, for signed-in Users, by email.

(2) Upon discontinuation of the entire Service:

1. Users are given a period of at least 60 days from announcement to export their data in accordance with Art. 20 GDPR (see Privacy Policy);
2. Google issues pro-rata refunds for already-paid but unused portions of the Pro Subscription;
3. decks already downloaded to Users' devices remain usable offline.

(3) Upon discontinuation of only the Deck Store function (e.g. for legal reasons):

1. the pure App feature scope (deck creation, shuffling) remains available;
2. the Pro Subscription is converted into a "Pro Legacy" plan that retains the lifting of the three-deck limit, or is refunded pro-rata, at the User's discretion;
3. already published decks are set to "read-only".

(4) Data export (Art. 20 GDPR). Independently of any discontinuation of the Service, Users may request their data at any time. Locally stored decks can be exported via the App's Settings → Export deck function as a .dbpd file. Cloud-synchronized data is provided on request, by email to jbokman95+privacy@gmail.com, in a structured, common and machine-readable format (JSON, supplemented by image files in a ZIP container if applicable). Processing takes place within 30 days of receipt of the request.

§ 12 Amendments to these Terms (Art. 14 DSA)

(1) The Provider may amend these Terms. A distinction is made between:

1. immaterial amendments: editorial corrections, structural adjustments without effect on the User's rights and obligations, which are documented by publishing the new version; continued use of the App after entry into force constitutes acceptance;
2. material amendments: e.g. expansion of data processing, new restrictions on User rights, price changes or changes in compensation, which are announced subject to a notice period of at least 30 days via the WhatsNewDialog and the website. Before entry into force, the User must actively consent to the amendments; without consent, the User may terminate the contract until entry into force.

(2) A so-called "silence-equals-consent" clause within the meaning of BGH XI ZR 26/20 is expressly not agreed for material amendments.

(3) The current version of these Terms is available at card-shuffle-app.web.app/#terms. Earlier versions are made available by email upon request.

§ 13 Third-party providers and external services

(1) The App and the Service integrate services of third-party providers. The respective third-party providers' own terms and privacy notices apply additionally. A direct contractual relationship between User and third-party provider exists only to the extent that the third-party provider so provides.

(2) The principal third-party providers are:

(3) A complete list and the respective privacy notices are set out in the Privacy Policy and in the App under Settings → Licenses.

(4) The Provider is not liable for the availability, functioning or data protection practices of third-party providers (see also § 10 Force majeure).

(5) Open-source components. The open-source components used in the App and their respective licensing terms can be reviewed in the App under Settings → Licenses.

§ 14 Privacy

The processing of personal data is governed by the separate Privacy Policy. The Privacy Policy forms part of these Terms.

§ 15 Applicable law, jurisdiction

(1) The contract is governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). For consumers habitually resident in another EU member state, the non-mandatory consumer protection law of the state of residence applies in addition (Art. 6 of the Rome I Regulation).

(2) Consumers may sue the Provider before the courts of their habitual residence (Art. 18 of the Brussels I-bis Regulation). No exclusive jurisdiction of German courts is agreed vis-à-vis consumers. In all other cases, the place of performance and the exclusive place of jurisdiction is the seat of the Provider.

§ 16 Final provisions

(1) Severability. Should individual provisions of these Terms be or become invalid, the validity of the remaining provisions remains unaffected. The applicable statutory provisions apply in place of the invalid provision.

(2) Assignment, transfer. The Provider is entitled to transfer its rights and obligations under these Terms in whole or in part to a legal successor, provided that this is reasonable for the User. The User is informed of any such transfer at least 30 days in advance by email (to signed-in Users) and via the website; if the User objects to the transfer within that period, § 12(1)(b) applies accordingly. The User may transfer their rights and obligations under this contract only with the Provider's express written consent.

§ 17 Contact

Annex 1: Model withdrawal form

(If you wish to withdraw from the contract, please complete and return this form.)

To: Julian Bokelmann, Steinrathshof 24, 41239 Mönchengladbach, Germany
Email: jbokman95+legal@gmail.com

I/We (*) hereby withdraw from the contract concluded by me/us (*) for the purchase of the following service:

____________________________________

Ordered on (*) / received on (*): ____________________________________
Name of the consumer(s): ____________________________________
Address of the consumer(s): ____________________________________
Signature of the consumer(s) (only if this form is notified on paper): ____________________________________
Date: ____________________________________

(*) Delete as appropriate.

Last updated: 30 April 2026.