Courtesy translation. Only the German version is legally binding (§ 12 (4)).
Version: 10 November 2026
(1) These Terms of Use apply to the use of the MARBLE app (hereinafter "App") and the associated services. The provider of the App and the user's contracting party for the contract of use (§ 3 (2)) is Marco Waltenberger, sole proprietor, Eselsbergsteige 137, 89075 Ulm, Germany, email: support@marble-app.de (hereinafter the "Provider").
(2) The App is intended for consumers for private use. For the term of the contract, the Provider grants the user the non-exclusive, non-transferable right to use the App for private purposes.
(3) For obtaining the App and purchasing Premium, the terms of the store from which the user obtains the App also apply. On devices running iOS, Apple's Standard End User License Agreement also applies (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/). As between the user and the Provider, these Terms of Use take precedence; the warranty and liability limitations of Apple's license agreement do not apply in the Provider's favour.
(1) MARBLE is an app for joint meal planning in private groups. The user can create recipes (texts, photos, nutritional information) or take them over from other sources (§ 7 (3)), keep weekly plans and shopping lists, record the group's cooking history and pass individual recipes on to other persons via a share link. A share link can be used only once to take over a recipe and is valid for three days or until a person takes over the recipe, whichever occurs first.
(2) The basic version is free of charge and financed by advertising; it has usage limits (§ 4 (4)). A subscription ("Premium", § 5) can be taken out for a fee. Personalized advertising and usage analytics with Firebase Analytics take place only with consent, which is obtained separately in the App and can be withdrawn there at any time; the basic version remains usable without this consent. The processing of personal data is described in the privacy policy (https://meal-planner-32551.web.app/en.html).
(3) The Provider may temporarily restrict the App for maintenance. The user's rights in the event of defects and § 10 remain unaffected.
(4) The Provider may change the App, including the basic version, its usage limits and the Premium features, if one of the following valid reasons applies: adaptation to new operating system or store requirements, security or data protection reasons, fixing errors, changes to the technical environment (e.g. a change of service provider), legal requirements, or further development of the App with an overall equivalent scope of services. The user incurs no additional costs as a result. The Provider informs about changes in the App. If a change impairs access to the App or its usability more than only insignificantly, the Provider informs the user by email in good time beforehand about the nature and timing of the change and about the user's rights under § 327r (3) and (4) BGB.
(5) Recipes, ingredients, quantities, preparation and nutritional information come from the users or from texts they have pasted, photographed or taken over via a link; the App merely converts them to other numbers of servings. The Provider does not check this information for accuracy or completeness. The App contains no verified information on allergens, intolerances or diets and gives no nutritional, health or medical recommendations. Recipe suggestions are based on the group's data (e.g. last cooked, variety of side dishes) and are not nutritional advice.
(1) Use requires a user account. Registration takes place with an email address and password (with confirmation of the email address) or via Sign in with Apple or Google.
(2) Upon registration and acceptance of these Terms of Use in the App, a free-of-charge contract of use for the basic version is concluded.
(3) Use of the App is only permitted from the age of 16 years.
(4) The user keeps their login credentials secret and their email address up to date.
(1) Content is shared in private groups. The user decides which groups they create and which they join. Joining takes place via an invitation code; each code is valid for exactly one person and seven days. The user passes invitation codes only to persons whom they know personally and who are meant to belong to the group.
(2) Each group has at least one administrator. Administrators can remove members, permanently delete the group's recipes and assign the administrator role to other members. If the last administrator leaves the group or is removed, another member automatically receives the administrator role.
(3) If a user leaves a group or is removed, the content they posted remains in the group for the other members; it is no longer attributed to them there. The user can delete their own content before leaving. They can assert statutory rights, in particular to erasure under data protection law, via the group administrator or support@marble-app.de.
(4) The following usage limits apply; the App displays them:
Changes to these limits are governed by § 2 (4).
(1) Premium is offered exclusively as an in-app subscription via the Apple App Store or Google Play. The seller is the operator of the store: Apple Distribution International Ltd. (App Store), Google Commerce Limited (Google Play) or the company named in the purchase process. Purchase, billing, renewal and refunds are governed by its terms; they are displayed in the purchase process. The Provider makes the Premium features available in the App in accordance with these Terms of Use. Price and term (monthly or yearly) are displayed in the App and in the store before purchase. A user can hold only one Premium subscription at a time.
(2) Premium currently includes: no advertising, unlimited recipe suggestions, unlimited photo scans and link imports, and groups with up to 7 members (§ 4 (4)). The current scope is displayed in the App. Changes are governed by § 2 (4).
(3) Premium is tied to a group: to the group that is active in the App at the time of purchase; the App shows it before purchase. The Premium features are available to all members of this group as long as the subscription runs. Only the user who took out the subscription is obliged to pay and entitled to cancel; the other members acquire no claims of their own. The subscription cannot be transferred to another group, except in the case of paragraph 4 sentence 3.
(4) If the user who took out the subscription leaves the group, is removed or deletes their account, the subscription does not end as a result; it remains assigned to the group and continues to be charged until the user cancels it via the store. The App points this out:
If the user is removed from the group by an administrator, they can request by email to support@marble-app.de that their subscription be assigned for the remaining term to another group to which they belong.
"Manage subscription" remains accessible in the App, even if the user no longer belongs to the group.
(5) The subscription renews automatically under the store's terms until it is cancelled. The user can cancel at any time via the subscription management of their store account; the App links there ("Manage subscription"). The deadline by which cancellation must be declared so that no further term is charged is governed by the store's terms, which are displayed in the purchase process.
(6) For the yearly subscription, the Provider may offer a free trial period (currently 14 days). It is granted once per group: if a member of the group has already used a trial period, all members of this group are offered the yearly subscription without a trial period. In addition, the store's rules apply, which may limit trial periods per store account. The trial period begins with the purchase in the store; its duration and the time of the first charge are displayed before purchase. If it is not cancelled via the store before it ends, it converts into the paid yearly subscription. The Provider may change or discontinue the offer of a trial period for future purchases.
(7) Price changes for a running subscription take effect only through the procedure of the respective store, which informs the user beforehand and, where the store provides for this, obtains their consent.
(8) If Premium ends, all of the group's content is retained and remains editable. Only the Premium features under paragraph 2 cease to apply, and advertising is shown again.
(1) Withdrawal of a Premium purchase is addressed to the store, not to the Provider. The statutory right of withdrawal for the purchase of Premium exists vis-à-vis the store operator from which the user purchased (§ 5 (1)); this operator also makes the refund. The withdrawal and refund terms of the respective store apply, which are displayed in the purchase process. The user declares the withdrawal there: for the Apple App Store, in the purchase history of their Apple Account ("Transaktion widerrufen" (withdraw transaction)) or via reportaproblem.apple.com; for Google Play, vis-à-vis Google Commerce Limited, for example via the order history of their Google Account.
(2) The user's statutory rights remain unaffected.
(1) The user is responsible for content they post in the App (in particular recipes, texts, photos and nutritional information, hereinafter "User Content"). The Provider does not adopt User Content as its own and does not check it in advance.
(2) The user posts only content to which they hold the necessary rights and which does not infringe the rights of third parties (in particular copyright, trademark, personality or data protection rights). The user posts recipes or photos from third-party sources (e.g. cookbooks, websites, other apps) only insofar as this is legally permissible.
(3) The App offers tools for taking over recipes from other sources:
The user triggers each takeover individually. The Provider does not retrieve third-party pages, does not store them and does not combine takeovers by different users. Recipes taken over are intended only for the private use of the user and their group. The user ensures that the takeover is permissible, does not take over photos from third-party sources, does not circumvent technical protection measures (e.g. login, paywall, bot blocking) and does not take over content in large numbers or systematically. In a link import, the address of the source is stored with the recipe so that notices from rights holders can be matched; the App does not display it, but it is transmitted along with the recipe when the recipe is passed on via a share link. The Provider may technically block imports from individual sources, in particular after complaints from rights holders.
(4) The user grants the Provider a non-exclusive, territorially unrestricted right of use in the User Content, limited in time to the duration under paragraph 5, restricted to the operation of the App. It covers storage and reproduction (including caching, backup copies and offline copies on the group members' devices), editing for technical display (e.g. image sizes, serving conversion) as well as display to the members of the group and, if the user uses a share link, to the recipient and the group into which the recipient takes over the recipe. The Provider may have these rights exercised by its hosting service providers. For content taken over (paragraph 3), the right of use applies only insofar as necessary for storage, display in the group and passing on via a share link. User Content is not used for advertising, marketing, training AI models or any other purposes outside the operation of the App.
(5) The right of use ends when the user deletes the respective content or their account. It continues for:
(6) Within a group, all members see: the members' display names and profile pictures, who created a recipe, who cooked which recipe and when (cooking history) and evaluations derived from it per member (e.g. number of recipes cooked in the last 365 days), the weekly plan and shopping list, and the display name of the member who took out Premium for the group. By joining a group, the user decides with whom they share this information.
(1) It is prohibited to post content that
It is also prohibited to misuse the App, in particular by circumventing technical protection measures or usage limits, automated access or disrupting operation. Objectionable content and abusive behaviour towards other users are not tolerated.
(2) Anyone can report content that they consider unlawful or impermissible under these Terms of Use: in the App via "Report" on the recipe or "Report content / Contact" in the settings (both open a prepared email) or by email to support@marble-app.de. A report should contain: a statement of reasons, the identification of the content (e.g. recipe name and group), the name and email address of the reporting person and a statement that the information is accurate to the best of their knowledge. Reports without this information are reviewed to the extent possible.
(3) The Provider confirms receipt of a report without undue delay, reviews it in a timely, diligent, objective and non-arbitrary manner and informs the reporting person of its decision, pointing out the available means of redress. Content is not automatically checked in advance; the Provider reviews and decides on reports personally, without automated decisions.
(4) If content violates these Terms of Use or applicable law, the Provider may, depending on the severity and repetition of the violation and with due regard to the user's interests, remove or block the content, warn the user, temporarily suspend the account or terminate the contract for good cause (§ 9 (3)); in the case of serious violations, in particular criminal content, also without prior warning. Deletions and removals by group administrators (§ 4 (2)) are not measures of the Provider.
(5) The Provider informs the affected user of a measure under paragraph 4 by email with a statement of reasons: which content is affected, which measure was taken, whether the measure is based on a report or on the Provider's own findings, which provision or rule of these Terms of Use it is based on and how the user can challenge it. The user can object informally within six months by email to support@marble-app.de; the Provider reviews the objection personally and communicates the result. Recourse to the courts remains open.
(6) The point of contact for users and for authorities and courts under Regulation (EU) 2022/2065 (Digital Services Act) is support@marble-app.de (languages: German and English).
(1) The free-of-charge contract of use runs for an indefinite period. The user can end it at any time without notice by deleting their account in the App (Settings → Delete account) or by requesting deletion by email. Beforehand, they can delete their own content and export their data (Settings → Export my data). When personal data is deleted is set out in the privacy policy. Deleting the account does not cancel a running Premium subscription. It must additionally be cancelled via the store (§ 5 (5)), otherwise the store continues to charge it. The App points this out before deletion.
(2) The Provider can terminate the free-of-charge contract of use by email with four weeks' notice. If it discontinues operation of the App altogether, it announces this by email at least three months in advance. If the user has themselves taken out a running Premium subscription, a termination under sentence 1 takes effect at the earliest at the end of the paid period. If the Provider discontinues operation before then, it refunds the fee for the period that cannot be used pro rata; cancelling the subscription in the store remains the user's responsibility.
(3) The right of both parties to terminate for good cause remains unaffected. Good cause for the Provider exists in particular in the case of serious violations of § 8, or violations repeated despite a warning.
(4) Content that remains in shared groups (§ 4 (3), § 7 (5)) remains usable for the other members even after the contract ends.
(1) The statutory warranty rights apply.
(2) The Provider is liable without limitation for intent and gross negligence as well as for damage resulting from injury to life, body or health.
(3) In the case of simple negligence, the Provider is liable only for the breach of an essential contractual obligation, i.e. an obligation whose fulfilment makes the proper performance of the contract possible in the first place and on whose observance the user may regularly rely; liability is then limited to the foreseeable damage typical for the contract. This applies equally to the basic version and to Premium.
(4) Liability under the Product Liability Act (Produkthaftungsgesetz), for fraudulent concealment of a defect and under a guarantee remains unaffected. The limitation under paragraph 3 also applies in favour of the Provider's legal representatives and vicarious agents.
(1) If the Provider changes these Terms of Use, the App displays the new version at the next start. It applies to the user only once they expressly accept it there. The fee of a running subscription does not change as a result.
(2) As long as the user does not accept the new version:
(3) Previously, the App referred only to Apple's Standard End User License Agreement. These Terms of Use govern the relationship with the Provider; on devices running iOS, Apple's Standard End User License Agreement continues to apply alongside them (§ 1 (3)). Users who registered before 10 November 2026 are asked to accept them on the first start of the App from version 1.4.0; paragraph 2 applies accordingly.
(1) Notices from the Provider are given by email to the stored address or by display in the App. Declarations to the Provider (e.g. termination of the contract of use, objection, reports) can be made informally, in particular by email to support@marble-app.de. Cancellation of the Premium subscription is governed by § 5 (5).
(2) The law of the Federal Republic of Germany applies. If the user has their habitual residence in another state, the mandatory consumer protection provisions of that state remain unaffected.
(3) The Provider is neither willing nor obliged to participate in dispute resolution proceedings before a consumer conciliation body.
(4) The contractual language is German. An English translation is provided for information purposes only. The current version of these Terms of Use is available at https://meal-planner-32551.web.app/agb.html, where it can be saved and printed; earlier versions remain available online and are linked there.