Terms of Use

These terms of use apply to the “Tago” app for iOS and Android and the related online services (e.g. account and backup, AI features, connections with trainers and friends, and the trainer dashboard at trainer.jointago.app).

The provider is Sven Grabowski (TagoHealth), Pletschmühlenweg 62, 50259 Pulheim, Germany, email: sven@jointago.app (“we”).

If you download Tago from the App Store or Google Play, the terms of Apple or Google also apply to the download and to purchases. On iOS, Apple’s standard Licensed Application End User License Agreement also applies.

Terms set by users do not apply.

Apple’s standard licence agreement (EULA)

Tago is a diary for food, symptoms, wellbeing and activity. The app helps you track calories and nutrients and spot patterns in your own entries.

Tago is not a medical device. The app does not diagnose and is not intended to treat, cure or prevent any disease. It does not replace medical advice. Analyses, patterns and test results are statistical hints from your entries, not proof of an intolerance or allergy.

Please have severe, persistent or new symptoms checked by a doctor. Only do elimination tests or reintroductions with known or suspected allergies, during pregnancy, with eating disorders or with pre-existing conditions after talking to your doctor. In an emergency, call 112.

Nutrition values, allergen and recall notices come from Open Food Facts, the German Food Code (BLS), manufacturers and users, and AI estimates. They may be incomplete, outdated or wrong. If you have allergies, always rely on the ingredient list on the pack or on what the restaurant tells you. A missing recall notice does not mean a product is safe.

You can use many features without signing in. Your entries then stay on your device. For backup, switching devices, connections and a larger AI allowance you need an account (sign-in with Apple, Google or email).

You must be at least 16 years old to use Tago.

Keep your login details secret and give true information when you sign up. An account is for one person only and must not be passed on or sold.

You can delete your account at any time in the app (Profile → Privacy & data) or on our website. We then delete your data on our servers as described in the privacy policy. Entries on your device remain until you delete them or the app.

Delete account · Privacy policy

Tago’s basic features are free. Some features, especially AI features, can only be used a limited number of times for free (allowance). The app shows how many uses you have left.

Tago Pro is a subscription with a monthly or yearly term, possibly with a free trial. You see the price, term and features in the app and in the store before you buy.

The purchase and payment are handled by the store, i.e. Apple via the App Store or Google via Google Play, under their terms.

The subscription renews automatically for the same term unless you cancel it at least 24 hours before the end of the term. You can cancel at any time in the subscription settings of your Apple or Google account. Deleting the app or your Tago account does not end the subscription.

As a consumer in the EU you have a statutory right of withdrawal when you buy. Withdrawal and refunds go through Apple or Google. Details, including when the right of withdrawal expires early, are in the store’s terms and withdrawal notice.

We may only change Pro features for a valid reason, for example due to technical developments or new legal requirements, and at no extra cost to you. If a change affects your access or usability more than insignificantly, we will tell you in good time beforehand. You can then end the contract free of charge within 30 days (Section 327r of the German Civil Code).

Pro that we give away or unlock as part of a promotion applies for the stated period and then ends automatically. It is not a subscription and does not renew.

Photo scan, menu scan, voice input, label recognition, recipe from link, AI report and daily insights use artificial intelligence (currently Google Gemini, connected via our server).

The results are automatic estimates. Portions, calories, ingredients and allergens may be wrong. Check the suggestions before you save them. AI texts are not medical advice either.

Only upload photos, texts and links you are allowed to use. Only photograph other people with their consent.

To prevent misuse, the app proves it is genuine when making AI requests (Google Play Integrity or Apple App Attest). Details are in the privacy policy.

Your entries belong to you. We only use them to provide Tago to you, as described in the privacy policy. You can export your data at any time.

Some information you share on purpose so that Tago gets better for everyone: corrections and reports about products, portion suggestions and feedback on AI results. You grant us a simple, free and unlimited right to review and edit this information and to make it available to all users in Tago without reference to you.

Recipes you import from links are for you only. We do not publish them for others.

With connections to trainers or friends, you decide what you share. Messages and comments must not contain unlawful, insulting or harassing content or advertising. Trainers act on their own responsibility. Their advice is not a service of ours, and we are not a party to your agreements.

You can report unlawful content to us at any time at sven@jointago.app. We review reports promptly and may remove content that violates the law or these terms. We will tell you about a decision and give our reasons.

Most features run on your device, even without internet. We keep our online services as available as possible. Maintenance and outages at third parties, such as the AI provider or the stores, may limit them at times.

We provide the updates needed for Tago to work as agreed and to stay secure (Section 327f of the German Civil Code). Please install them. Very old app versions may no longer be able to use online features.

Without an account, your entries are only on your device and will be lost if you lose or change it. Use the backup with an account or the data export.

We may develop, change or discontinue free features. If important features are removed, we will announce this in good time. Exporting your data remains possible.

When using Tago, you may not:

• use Tago for unlawful purposes or infringe the rights of others,
• get around security measures, allowances or paywalls, for example with many anonymous accounts or modified apps,
• query or scrape our servers, the product database or AI features automatically,
• introduce malware or disrupt operation,
• decompile or copy the app, unless the law expressly allows it.

In case of violations we may remove content, block individual features or terminate the account. We choose an appropriate measure and tell you why.

We are liable without limitation for intent and gross negligence, for injury to life, body or health, under the German Product Liability Act, under a guarantee we have given and for fraudulently concealed defects.

For slight negligence we are only liable if we breach an essential contractual obligation. That is an obligation whose fulfilment makes proper performance of the contract possible in the first place and on which you may regularly rely. Liability is then limited to the damage that is typical for the contract and foreseeable.

For loss of data caused by slight negligence, we are only liable for the effort that would have been needed to restore it even with regular backups or exports.

Your statutory rights in case of defects in digital products (Sections 327 et seq. of the German Civil Code) remain unaffected. Please report bugs to us so we can fix them.

The contract for free use runs for an indefinite period. You can end it at any time by deleting your account or the app.

We can terminate the contract for free use with four weeks’ notice. Both sides keep the right to terminate for good cause, for example for serious violations of these terms.

For Tago Pro, the term and cancellation under Section 4 apply. Before the end you can export your data. Afterwards we delete your data on our servers as described in the privacy policy.

We only change these terms for a valid reason, for example for new features or a change in the law. We will tell you about changes in good time beforehand in the app or by email.

A change only takes effect if you agree to it. If you don’t agree, the previous terms continue to apply. We may then terminate the contract for free use under Section 10. A running Pro subscription is not affected.

The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. Mandatory consumer protection rules of the country where you habitually live remain unaffected.

We are neither obliged nor willing to take part in dispute resolution proceedings before a consumer arbitration board. If you have questions or problems, just write to us and we’ll find a solution together.

If any provision is invalid, the rest remain valid. The statutory rules apply in place of the invalid provision.

These terms are available in several languages. The German version is authoritative.