Grammo

Terms of Use

This English version is provided for convenience only. The German version is legally binding.

Last updated: July 2026

1. Scope and provider

These terms of use govern the use of the iOS app "Grammo" (hereinafter referred to as the "App"), offered by Jan-Luca Sader, Am Berge 2, 29690 Schwarmstedt, email: [email protected] (hereinafter referred to as "we"). By registering for or using the App, you agree to these terms. Any deviating terms of the user shall not apply.

For the acquisition of the App and of in-app purchases via the Apple App Store, the Apple Media Services Terms and Conditions additionally apply; in this respect, Apple is the contracting party of the purchase transaction.

2. Description of services

Grammo is an app for logging nutrition (in particular protein and nutrient intake) and body weight, and for setting and calculating personal nutrition goals. Its features include, among others, recording meals (including via barcode scan with product data from the Open Food Facts database), weight histories, statistics, and optional reminders. Certain additional features are reserved for the paid version "Grammo Pro" (Section 4). The product and nutritional data used in the App originates in part from third-party databases (Open Food Facts) and from user input; we accept no responsibility for its completeness or accuracy (Section 5).

3. Registration and minimum age

Use of the App requires a user account. Sign-in takes place via "Sign in with Apple", Google, or an email sign-in link; no password is issued. You are obliged to provide accurate information when registering and to protect access to your account (in particular to your email inbox) against access by third parties.

The App is intended exclusively for persons who are at least 16 years old. By registering, you confirm that you have reached this minimum age. The App is furthermore intended exclusively for consumers for private use.

4. Grammo Pro (subscription and lifetime purchase)

  • "Grammo Pro" is available as a subscription (monthly or yearly, automatically renewing) or as a one-time purchase ("Lifetime"). The applicable prices, terms, and any free trial period are displayed in the App and in the App Store before purchase.
  • Purchase, billing, renewal, and cancellation are handled exclusively via your Apple account (App Store / StoreKit). The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period via the subscription management of your Apple account.
  • A free trial period automatically converts into a paid subscription unless it is cancelled before it expires via the subscription management of your Apple account. Any unused trial period is forfeited upon purchase.
  • The lifetime purchase grants access to the App's Pro features for the App's lifetime (Section 7); it does not establish any claim to the App being operated for an unlimited period of time.
  • Price changes for future billing periods are announced in accordance with the rules of the App Store; they do not apply retroactively. If you do not object to a price increase in the manner provided by Apple or — where required — do not consent to it, the subscription ends at the end of the current period.
  • Consumer rights, including the right of withdrawal for digital content and services, are handled for purchases via the App Store in accordance with Apple's terms (refund requests via Apple, e.g. at reportaproblem.apple.com). Statutory rights remain unaffected.
  • Deleting your user account does not automatically end an active subscription; cancel it additionally via your Apple account.

5. No medical advice / health notice

The App serves exclusively for self-directed logging and general information. It is not a medical device and does not replace medical, nutritional, or therapeutic advice, diagnosis, or treatment. All displayed values — in particular nutritional information, calorie and protein goals, and calculated requirement values — are estimates and approximations based on general formulas (e.g. Mifflin-St Jeor) and the information you provide; in individual cases they may deviate considerably from your actual needs.

Always consult a physician or qualified professional in case of health concerns, pre-existing conditions, pregnancy, or eating disorders, or before making significant changes to your diet. Do not use the App as a basis for medical decisions.

6. User obligations

  • You use the App only for your own private purposes and in compliance with applicable law.
  • You will not misuse the App; in particular, you will not circumvent security mechanisms, attempt unauthorized access to third-party systems or data, or use the App in an automated manner that impairs its operation.
  • Content uploaded by you (e.g. profile picture) must not infringe third-party rights or violate statutory provisions.
  • You are responsible for the accuracy of the data you enter (e.g. weight, height, meals); the quality of the calculated values depends on your input.

7. Availability, changes, and further development

We strive for high availability of the App but do not owe uninterrupted availability. Maintenance work, updates, disruptions at third-party providers (e.g. hosting, App Store), or force majeure may temporarily limit usability. We may further develop the App and change or discontinue features insofar as this is reasonable for you, taking our legitimate interests into account; essential features of the service you have paid for will not be withdrawn without compensation. Statutory rights regarding changes to digital products (Sections 327 et seq. BGB (German Civil Code)) remain unaffected.

8. Rights of use

For the duration of your use, we grant you a non-exclusive, non-transferable, non-sublicensable right to use the App on your own devices for private purposes. You retain all rights to your own log data; with Grammo Pro you can export it as CSV at any time.

9. Liability

We are liable without limitation for intent and gross negligence, for damages arising from injury to life, body, or health, under the Produkthaftungsgesetz (German Product Liability Act), and to the extent of any guarantee we have assumed.

In cases of simple negligence, we are liable only for the breach of essential contractual obligations (cardinal obligations), i.e. obligations whose fulfilment is a prerequisite for the proper performance of the contract in the first place and on whose observance you may regularly rely. In such cases, liability is limited to the damage typical for the contract and foreseeable at the time the contract was concluded. In all other respects, liability for simple negligence is excluded.

In particular, we are not liable for disadvantages arising from your treating displayed estimates and approximations (Section 5) as medically authoritative, nor for the substantive accuracy of product data from third-party databases (Open Food Facts) or of user input. The above limitations also apply in favor of our legal representatives and vicarious agents.

10. Term and termination

The contract of use runs for an indefinite period. You may end it at any time by deleting your account in the App (Settings → Delete account); this deletes all associated data. We may terminate the contract in the ordinary course with reasonable notice; paid service periods will not be devalued in the process (where applicable, pro-rata refund via Apple). The right to extraordinary termination for good cause — in particular in the event of significant violations of Section 6 — remains unaffected.

11. Changes to these terms

We may amend these terms of use with effect for the future insofar as this is necessary due to changes in the law, case law, or changes to the App's features, and does not unreasonably disadvantage you. We will inform you of changes in the App in a highlighted manner. If you object to a change, you may end the contract at any time in accordance with Section 10.

12. Governing law

The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. If you are a consumer with your habitual residence in another country, mandatory consumer-protection provisions of that country remain unaffected.

13. Dispute resolution

We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board within the meaning of the VSBG (German Consumer Dispute Resolution Act). The European Commission's former Online Dispute Resolution platform (ODR platform) was discontinued as of 20 July 2025.

14. Final provisions

Should individual provisions of these terms of use be or become invalid in whole or in part, the validity of the remaining provisions shall remain unaffected. The invalid provision shall be replaced by the statutory provisions.

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