Privacy policy

Last updated: 17 September 2026

In short

Controller

Patrick Gutsch, Klatschmohnweg 4, 38300 Wolfenbüttel, Germany. Email: datenschutz@fellbert.app.

No data protection officer has been appointed; the legal requirements for doing so are not met.

Use without an account

By default, Fellbert processes everything solely on your device: pet profiles, feeding and medication plans, ticked-off doses, observations, weight, appointments and the contact details of owner and veterinary practice. This data is not transmitted to us or to third parties. We have no access to it.

Reminders are scheduled locally by the operating system. As long as you use no account, nothing leaves the device for this.

Account and synchronisation

If you create an account to keep several devices in sync or to share a pet with someone, we additionally process:

What never leaves the device

The owner’s contact details, name, address, phone number and email, which appear as the letterhead of the vet report, are not synchronised. They stay on the device where you entered them, even if you use an account. Language and colour scheme, your list of pets and the medical notice likewise stay local.

Purposes and legal bases

Service providers

We use the following processors. Data processing agreements under Art. 28 GDPR are in place with all of them.

No advertising, no analytics

Fellbert contains no advertising networks, no analytics or statistics services and no cross-device tracking. No profiles about you are created and no data is sold to third parties.

Retention and deletion

We store synchronised data for as long as your account exists. If you delete a pet, its data and the associated shares are removed. If you delete your account, your sign-in details and all data of the pets you solely own are deleted.

You can delete it in the app under Settings, without going through us. You may also request deletion via the “Delete account” page. Data that exists only on your device is deleted by removing the app.

Your rights

You have the right of access (Art. 15), rectification (Art. 16), erasure (Art. 17), restriction (Art. 18), data portability (Art. 20) and objection (Art. 21 GDPR). Please write to datenschutz@fellbert.app. We reply within one month.

You may also lodge a complaint with a supervisory authority; ours is the State Commissioner for Data Protection of Lower Saxony, Prinzenstraße 5, 30159 Hannover, Germany.

Children

Fellbert is aimed at adults. Only persons of full legal age should create an account.

Changes

If the way Fellbert processes data changes, we update this policy and adjust the date above. We additionally announce material changes in the app.