Pocket Crowd

Privacy policy

Last updated 11 November 2026.

Pocket Crowd lets supporters send voice or text cheers to a runner, which the runner's iPhone app plays during a race. This page explains what data that involves, why, and how to have it deleted. We don't show ads, don't track you across apps or websites, and don't sell data.

Who is responsible

Léo Jacques Marcel de Riedmatten, Switzerland. Contact: hello@pocketcrowd.app.

Runners (app users)

• Account: your email address, or the name and email Apple shares when you use Sign in with Apple (which can be a private relay address). Used to sign you in and keep your races.
• Profile: the name and photo you add. They are shown to your supporters on your cheer page.
• Races: race name, an optional date and start time, distance, how cheers are set up (where they start and end, how far apart and how many per distance), and an optional course map. Anyone with your cheer link sees these.
• Location: only while a run is active (between START and PAUSE or END RUN): your position, distance and pace, sent every 15 seconds. Anyone with your cheer link can see your live position and trail while the race is open, so share the link only with people you trust. Location is off at all other times.
• Cheers you receive are stored with your race so you can replay and export them.
• Demo recording: the app's demo lets you record a practice cheer. It stays on your phone, is never uploaded, and is deleted when the demo ends. The microphone isn't used anywhere else in the app.
• Diagnostics: the app keeps a short activity log of your current race on your phone (for example "cheer played at 12.5 km" or connection errors). It leaves the phone only if you choose to share it from Profile → Help → Diagnostics.

Supporters (cheer page)

• Your cheer: the name you type, your recording or message, and the distance you chose. Only the runner can listen to or read it. Names and messages are checked automatically against a list of offensive words. To read it out in a natural voice, your name and typed message are sent to Google Cloud Text-to-Speech when you send the cheer; the resulting audio is stored with your cheer and deleted with it. Your browser's language setting is stored with the cheer to pick the right voice.
• Browser key: a random key kept in your browser lets you see, re-record and delete your own cheers. We store only a scrambled version (a hash) of it, also used to enforce limits and blocks. A copy of your recording is kept in your browser so you can listen again. No cookies are used.

Service providers

• Supabase stores the data (servers in Frankfurt, Germany).
• Vercel hosts the cheer page.
• Apple handles Sign in with Apple and app distribution.
• Google Cloud (Text-to-Speech, EU endpoint) turns cheer names and typed messages into speech.
• OpenStreetMap serves the map tiles and cdnjs (Cloudflare) the map library. Like any website, they receive your IP address when the page loads.

These providers may keep short-term technical logs (such as IP addresses) to run and secure their services.

How long data is kept

• Races, their cheers and GPS trails are kept until the runner deletes the race or their account.
• A cheer deleted by the runner is removed at once, including its recording. A cheer deleted or re-recorded by its supporter is removed at once; its recording and spoken audio are deleted when the race ends.
• If a runner reports a cheer as abusive, a copy (name, message, recording) is kept for review and to prevent misuse, even if the race is later deleted.

Deleting your data

• Runners: delete a race on its page in the app, or everything in Profile → Delete account. If you signed in with Apple, deleting your account also ends the app's Sign in with Apple link to your Apple ID.
• Supporters: delete your cheer on the cheer page until it has played, or email us to have any cheer removed.

Your rights

You can ask to see, correct or delete your data, or object to how it's used, by emailing hello@pocketcrowd.app. You can also complain to the Swiss Federal Data Protection and Information Commissioner (FDPIC) or your local data protection authority in the EU.

Children

Pocket Crowd isn't meant for children under 13.

Changes

If this policy changes, the date at the top changes too. Significant changes will be announced in the app.