Terms of Service (ToS)

1. Scope & Eligibility

These General Terms of Service (hereinafter referred to as "ToS") govern the contractual relationship between Markus Rohling, c/o POSTFLEX PFX-452-617, Emsdettener Straße 10, 48268 Greven (details see Legal Notice in accordance with § 5 DDG) as the developer and operator of the MaGymus app (hereinafter "Provider", "we", or "us") and the users of the app (hereinafter "User" or "you").

The app is intended exclusively for consumers within the meaning of § 13 BGB (German Civil Code). Use for commercial or independent professional purposes is not permitted.

Use of the app requires that the User is at least 16 years of age. By downloading the app, the User confirms their age as well as their agreement to these ToS.

2. No Medical Advice & Algorithm Limitations

Important: MaGymus is not a medical facility and does not provide diagnoses. The app merely provides a generic, purely mathematical tool for training management and does not owe any advice tailored to your individual health conditions. The use of the app in no way replaces medical consultation or treatment. Strength training carries an inherent risk of injury. Since we do not assume any medical duty of care, the responsibility for the safe physical execution and the realistic assessment of your own performance capabilities lies entirely with you. Consult a physician before starting any training program.

The "Active Coach" (Progressions): The weight recommendations, volume targets, and calculations (e.g., ACWR) displayed in the app are purely mathematical, non-binding forecasts based on your previous inputs. They do not constitute medical or personal coaching. Your Duty to Cooperate: As a user, you are contractually obligated to critically assess your current physical condition as well as the mechanical safety and calibration (normalization) of the gym equipment before every single set. Never exceed your physical limits based on app suggestions.

3. Pricing and In-App Purchases

The basic version of MaGymus is provided free of charge ("Free-Tier"). Advanced features can be unlocked via an in-app purchase ("MaGymus Pro"). This can be done as a subscription (monthly or yearly) or as a one-time payment (Lifetime License).

Subscriptions automatically renew for the chosen period (month or year) unless canceled at least 24 hours before the end of the current billing cycle via the settings of the App Store (Apple App Store). One-time purchases do not automatically renew.

The processing of all purchases takes place exclusively via the Apple App Store using Apple's payment terms. The Provider does not store any payment information.

Statutory Right of Withdrawal: Since the purchase contract is concluded via the Apple App Store, the statutory right of withdrawal for digital content as well as any claims for refunds are governed exclusively by the Terms and Conditions and policies of the Apple App Store. Please handle withdrawals and refunds directly via the official Apple portal at reportaproblem.apple.com.

4. Technical Requirements & Internet Usage

Internet Connection Requirement for Verification (12h Grace Period)

To complete your purchase and verify the active status of your Pro access (subscription or lifetime license), the MaGymus app requires occasional internet access. We grant an offline grace period of 12 hours starting from the last successful verification. If the app is completely offline for more than 12 consecutive hours (e.g., airplane mode or no reception), the Pro features will be temporarily deactivated as a security measure. As soon as you restart the app with an active internet connection, the features will be immediately unlocked again. Since the basic version of the app remains usable offline, no training data will be lost. A 100% uninterrupted availability of the verification servers is not guaranteed.

Outgoing Internet Connections & External Services

Although MaGymus stores your training data exclusively locally, it establishes outgoing connections in certain cases: (a) To fetch the full terms of service, privacy policy, and legal notice via links in the device's web browser from our website, (b) To communicate with the App Store (Apple) and RevenueCat for subscription and license verification, (c) To redirect to external services (such as Instagram for social media links or your email client for support requests), and (d) For rating the app via the in-app review interface.

Account Binding (No Cross-Platform)

Since MaGymus is a privacy-friendly "Offline-First" app without its own user accounts, a purchase is strictly tied to the respective Apple ID. A switch of your Apple ID means that a previously purchased subscription cannot be transferred to the new account, as no cloud infrastructure exists for cross-device synchronization.

5. Subscriptions, One-Time Purchase & Duration

For subscriptions, the chosen term (monthly or yearly) applies. Subscriptions can be canceled at any time to the end of the current billing cycle.

The "One-Time Purchase" grants access to all Pro features for the lifetime of the app, i.e., as long as the app is actively offered and maintained by the Provider. There is no obligation for the Provider to operate or develop the app indefinitely.

The "One-Time Purchase" does not entitle the User to a refund in the event of a later discontinuation of the app, provided a reasonable period of use has passed between the purchase and the discontinuation.

6. Cancellation Policy

For in-app purchases, processing takes place via the Apple App Store. You have the right to withdraw from this contract within 14 days without giving any reason. The withdrawal period is 14 days from the day of the conclusion of the contract.

To exercise your right of withdrawal, you must inform us (Markus Rohling, c/o POSTFLEX PFX-452-617, Emsdettener Straße 10, 48268 Greven, Germany, Email: support@marrohstudio.com) of your decision to withdraw from this contract by an unequivocal statement. However, since the purchase processing takes place via the Apple App Store, we strongly recommend that you handle your withdrawal directly via Apple at reportaproblem.apple.com, as Apple acts as the "Merchant of Record" and refunds can technically only be issued through Apple's infrastructure.

Sample Withdrawal Form:
If you want to withdraw from the contract, please fill out this form and send it back:

Note on the Expiry of the Right of Withdrawal: The right of withdrawal expires in the case of a contract for the supply of digital content not supplied on a tangible medium if the entrepreneur has begun performance of the contract after the consumer has expressly consented to the entrepreneur beginning performance of the contract before the expiry of the withdrawal period and has acknowledged that by giving this consent he loses his right of withdrawal once the performance of the contract has begun.

7. Liability

Claims of the User for damages are excluded. Excluded from this are claims for damages by the User arising from injury to life, limb, health, or from the breach of essential contractual obligations, as well as liability for other damages based on an intentional or grossly negligent breach of duty by the Provider, its legal representatives, or vicarious agents.

In the event of a breach of essential contractual obligations, the Provider shall only be liable for the contract-typical, foreseeable damage if this was simply caused by negligence, unless it concerns claims for damages by the User arising from injury to life, limb, or health. Essential contractual obligations are those whose fulfillment is necessary to achieve the objective of the contract. We assume no liability for the accuracy of algorithmic calculations. We do not guarantee any specific sporting success (e.g., muscle building) and assume no liability that the algorithmically calculated weight suggestions are physically safe for you to lift on a given day.

Since MaGymus is a 100% "Offline-First" application and deliberately does not use cloud servers, a server-side restoration of your data is technically impossible. The Provider therefore assumes no liability for the loss, security, or misuse of data that is stored exclusively locally on your device. This applies in particular to data loss due to accidental deletion of the app, failed operating system updates, hardware defects, or device loss. It is solely the User's independent responsibility to perform regular backups (e.g., via the built-in SQLite backup or CSV export) and store them externally.

8. Intellectual Property, Usage Restrictions & Feedback

We grant you a limited, revocable, non-exclusive, and non-transferable license to use the app for personal, non-commercial purposes. In the event of a breach of these terms, we reserve the right to revoke this license with immediate effect.

The app, its design, the training control algorithms, and all content contained therein (with the exception of user-generated photos) are the sole intellectual property of the Provider. You are expressly prohibited from copying, modifying, distributing, selling, or renting the app or parts thereof. Furthermore, any reverse engineering of the source code, decompiling, or the use of automated bots, spiders, or scrapers to extract app structures is strictly prohibited.

If you submit feedback, ideas, or suggestions for improving the app to us, you grant us the irrevocable, worldwide, and royalty-free right to implement and use this feedback in the app without any restrictions or obligation to compensate you.

9. Updates & "As-Is" Provision

The app and all associated services are provided "as is" and "as available". We do not guarantee continuous error-free operation or the uninterrupted availability of certain features. We reserve the right, at our sole discretion, to deploy updates, modify features, add new ones, or discontinue them without prior notice and without liability to you. This does not affect our statutory obligation to provide necessary updates (e.g., security or compatibility updates) to maintain the contractual conformity of the app in accordance with § 327f BGB for the legally required period.

10. Indemnification

You agree to indemnify, defend, and hold harmless the Provider, its employees, and representatives from any claims, demands, losses, liabilities, and expenses (including reasonable attorney's fees) asserted by third parties and arising out of or in connection with the following, provided you are responsible for them (culpable violation): (a) your use of the app in violation of these ToS, (b) content created or shared by you (especially in the event of a violation of third-party copyrights, trademark rights, or personal rights in progress photos), or (c) your violation of applicable law or third-party house rules.

11. User-Generated Content (Photos)

MaGymus offers the possibility to store progress photos within the app and output them in before-and-after comparisons (collages). The User is solely and entirely responsible for all photos they take, import, or share via the system functions in the app.

Your content belongs to you: Unlike many other platforms, the Provider of MaGymus claims no copyrights, commercial licenses, reproduction, or evaluation rights to your training data, notes, or progress photos. All rights to your content remain 100% with you.

At the same time, the User commits not to create or share photos that violate applicable law, the house rules of fitness studios (e.g., photo bans), or the rights of third parties. The Provider of the app assumes no liability for the content created by the User, even if it contains the watermark of the app. The User indemnifies the Provider from any third-party claims arising from the illegal or contract-violating use of the app by the User regarding such content.

12. Changes to the Terms of Service

We reserve the right to change these Terms of Service. We will inform users of material changes in a timely manner (e.g., via a notification in the app). For material changes that alter the balance of the contract, we will obtain your explicit consent (e.g., via a pop-up when starting the app). Users who do not agree with the changed terms may continue to use the app under the previous terms until the end of their subscription period, or delete the app.

13. Choice of Law & Jurisdiction

The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). For consumers, this choice of law only applies to the extent that it does not deprive them of the protection granted to them by mandatory provisions of the law of the country in which they have their habitual residence.

If the User is a merchant, a legal entity under public law, or a special fund under public law, the registered office of the Provider is the exclusive place of jurisdiction for all disputes.

Online Dispute Resolution: We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board. Our email address is: support@marrohstudio.com.

Should individual provisions of these ToS be or become invalid, the validity of the remaining provisions shall remain unaffected.

14. Additional Provisions for iOS Users (Apple EULA)

If you download the app via the Apple App Store, you acknowledge the following provisions: This agreement is concluded exclusively between you and the Provider of the app, not with Apple Inc. Apple is not responsible for the app or its content and has no obligation to furnish any maintenance or support services with respect to the app.

However, Apple and Apple's subsidiaries are third-party beneficiaries of these Terms of Service. Upon your acceptance of these terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms of Service against you as a third-party beneficiary.