Privacy
Last updated: 14 November 2026
Hold the Line works without sign-up and without tracking. This page explains what the app stores, why, and how you delete it.
Who is responsible
Johannes Brauner
Hein-Hoyer-Str. 23
20359 Hamburg, Germany
support@holdtheline-app.com
What the app stores
- An anonymous ID. On first launch the app creates an account without name, email or password. It links your tests on this phone.
- Speed tests. Download, upload, ping, network type (WiFi, LTE, 5G, flight), time.
- Where you tested. The position of a WiFi or mobile test. Others only see the spot or a map cell of about 65 m, never who measured and never the exact point. Flight tests store no position.
- What you add. Spots, access details, ratings, tips and “WiFi not working” reports. Tips and spot details are public; who wrote them is not shown.
The app does not collect your name, contacts, photos, advertising ID or browsing. There are no ads and no third-party analytics.
Why
To show travellers how fast the internet is at a place, on a network or on a flight (Art. 6(1)(b) GDPR, providing the service you use).
Who processes data for us
- Supabase (database and anonymous login), servers in Ireland, EU.
- Cloudflare (speed test server). Your IP address is used to run the test and is not stored by us.
- Apple (Maps, nearby places, in-app purchases). Purchases are handled by Apple; we never see your payment details.
How long
Until you delete it. WiFi reports stop showing after 24 hours.
Delete your data
In the app: Profile → Delete my data. This removes your anonymous ID with all tests, ratings, tips and reports at once. Spots you added stay on the map without your link. You can also write to us.
Your rights
You can ask for access, correction, deletion, restriction, portability and object to processing. You can complain to a data protection authority, for example the one in your country.