Last updated: February 17, 2026
Disclaimer: This document is a translation and is provided for informational purposes only. Only the original German version is legally binding. You can view the original version here.
The website youproof.at uses Umami Analytics. Umami is privacy-friendly and self-hosted on Hetzner (Germany).
Umami does not use cookies, does not store persistent user identifiers, and only generates aggregated usage statistics (e.g., page views, country, device type).
In the app (app.youproof.at / youProof mobile app), we use Umami only to collect general usage data (e.g., which features are used and how often).
We cannot link this data to a user account, and we do not collect any data you enter in the app.
Legal basis: Art. 6 para. 1 lit. f GDPR (legitimate interest in anonymous usage measurement).
You are not obligated to provide your personal data. However, without it, you will not be able to fully use our services.
You have voluntarily provided us with data about yourself, and we process this data based on your consent for the following purposes: Communication with us, customer support, information about our products
You can withdraw this consent at any time. A withdrawal will result in us no longer processing your data for the aforementioned purposes from that point on. To withdraw consent, please contact us at the contact details below.
The data you provide is necessary for contract fulfillment or for the implementation of pre-contractual measures. Without this data, we cannot conclude the contract with you. In particular, we process the data you provide for payment processing.
We process data about you based on our legitimate interests or those of a third party. This allows our providers and us to protect our IT systems from attacks.
We generally store your data for a maximum duration of 12 months. The storage duration extends in the context of relevant statute of limitations, statutory retention periods, or any legal disputes where the data is needed as evidence. We store data required for providing your user account as long as your user account exists.
We engage data processors for this data processing.
| Data processor | Purpose | Location | Notes |
|---|---|---|---|
| Umami Analytics (self-hosted, Hetzner) | Website analytics on youproof.at and in-app usage statistics (no cookies, no account linkage) | Germany | Hosting by Hetzner; data processing agreement with Hetzner |
| Supabase | Backend for the youProof platform; processes technical data and data you provide | USA | Data processing agreement; Supabase Privacy Policy |
| Cloudflare | Providing our websites; technical access data | USA | EU–US Data Privacy Framework (Art. 45 GDPR); data processing agreement; Cloudflare Privacy Policy |
| Alchemy | Technical processes within the youProof mobile app | USA | Data processing agreement; Alchemy Privacy Policy |
If you contact us via email, your message and associated metadata are processed through Apple iCloud Mail.
For users in the EEA, the data controller is Apple Distribution International Ltd. (Ireland).
In some cases (e.g., support, diagnostics, backups), processing may be carried out by Apple Inc. (USA).
Such transfers are based on EU Standard Contractual Clauses (SCCs) pursuant to Art. 46 GDPR.
Apple acts as an independent data controller, not as a data processor.
Apple Privacy Policy: https://www.apple.com/legal/privacy/
You can reach us at the following contact details:
Franz Josef Drexler
Email: fj@drefrajo.dev
Phone: +43 681 20887501
Since we process the data based on our legitimate interests, you generally have the right to object if there are reasons arising from your particular situation that speak against this processing.
You have the right to access, rectify, delete, restrict, data portability, and object. For this, please contact us. If you believe that the processing of your data violates data protection law or your data protection rights have otherwise been infringed, you can lodge a complaint with the supervisory authority. In Austria, the data protection authority is responsible.