Terms and conditions

Last updated: October 2026

This is a translation for convenience. In case of doubt, the German version is legally binding: German version.

1. Scope

These terms and conditions apply to the use of the paid version "Lean is law Pro" (referred to as "Pro") within the Lean is law app for iPhone and Android (referred to as the "app"). The provider is:

Johannes Müller
Simone-Veil-Strasse 30
53121 Bonn
Germany
Email: [email protected]

By purchasing Pro you accept these terms.

2. Subject matter

Pro extends the free base version of the app with additional features, in particular adaptive maintenance calories (TDEE), target calories and macro targets, the forecast to the end of the phase, pose comparison, patterns, balance, monthly reports, body measurements, experiment evaluation, long chart ranges and, on iPhone, the iCloud backup and the larger widgets. The exact scope of features follows from the respective description on the Apple App Store or Google Play at the time of purchase.

We continue to develop the app. The scope of features may therefore change over time. We will inform you in good time about significant restrictions to existing Pro features.

Lean is law is not a medical device. Trend, forecast, maintenance calories and calorie and macro targets are statistical estimates from your own entries and do not replace medical or nutritional advice. Pace defaults and warnings are guide values. The app gives no advice on supplements or their dosage.

3. Conclusion of contract

The contract for Pro is concluded exclusively through the Apple App Store (iPhone) or Google Play (Android). By confirming the in-app purchase in the respective store you enter into a contract with us. Apple or Google acts as the payment service provider.

In addition, the Apple standard licence agreement (EULA) and the Apple App Store terms of use or the Google Play terms of service apply.

4. Prices and payment

Current prices for Pro can be found on the app's product page on the Apple App Store or Google Play and in the app itself. All prices shown are final prices including statutory VAT.

Billing runs through your Apple Account or Google Account. Payment is processed by Apple or Google. Their payment terms apply.

5. Subscription, one time purchase and cancellation

Pro is available as an automatically renewing subscription (monthly or yearly) and as a one time purchase without a subscription. You choose which option you want when purchasing in the store.

A subscription renews automatically for the respective period unless it is cancelled at least 24 hours before the end of the current period. If a free trial is offered with the yearly subscription, the paid period begins immediately after the trial ends unless you cancel beforehand.

On iPhone, you cancel via the subscription management in your Apple Account settings:

Open Settings on your iPhone
Tap your name → Subscriptions
Select Lean is law Pro and tap Cancel subscription

On Android, you cancel in the Play Store under Profile → Payments & subscriptions → Subscriptions.

You can also reach the management screen in the app under "Settings & more → Manage subscription & purchases". After cancelling you can continue to use Pro until the end of the period you have already paid for. The one time purchase remains active permanently and cannot be cancelled.

6. Right of withdrawal

Because Pro consists of digital content that is not supplied on a physical medium, the withdrawal and refund rules of Apple or Google apply. Information about withdrawal and refunds can be found in the Apple support guidelines for subscriptions.

Apple usually offers the option to request a refund within 14 days of the purchase date. This is handled directly by Apple. For purchases through Google Play, the Google Play refund policies apply.

7. Availability and liability

We do our best to keep the app and Pro available at all times. However, we cannot guarantee uninterrupted availability. Temporary restrictions may arise in particular from maintenance, updates or faults.

We are liable without limitation for intent and gross negligence. In cases of slight negligence we are liable only for the breach of essential contractual obligations (cardinal obligations) and limited to the foreseeable damage typical for this type of contract. Liability for damage arising from injury to life, body or health remains unaffected.

8. Data protection

Information about the processing of your personal data can be found in our privacy policy. All health data (weight, body measurements, nutrition, supplements, photos) is stored exclusively on your device and is not transmitted to us; an optional backup ends up solely in your own iCloud account.

9. Changes to these terms

We reserve the right to change these terms with future effect where this is necessary and does not unreasonably disadvantage you. We will inform you of significant changes in good time, for example by in-app notification or email. If you do not object to the changes within 30 days of the notification, the new terms are deemed accepted. We will point out this consequence separately in the notification.

10. Final provisions

The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. Towards consumers this choice of law applies only insofar as it does not restrict mandatory statutory provisions of the state in which the consumer has their habitual residence.

Should individual provisions of these terms be or become invalid or unenforceable, the validity of the remaining provisions remains unaffected.

If you have questions about these terms you can reach us at any time at [email protected].