maibike

Privacy Policy

Last updated 13 August 2026

maibike is a personal tool for keeping track of bikes, components, and maintenance. It is run by an individual, not a company. This policy explains what the app stores, why, and who it is shared with — in plain language.

What we collect

Account details. Your email address, name, and a hashed password. Optional profile settings such as your preferred units, inseam measurement, and the places you normally ride.

Your bikes. Everything you enter about them: names, makes and models, components, frame geometry, maintenance logs, notes, and any photos you upload.

Rides. Distance, duration, elevation, start time, and — where the activity recorded one — the GPS route. Rides reach maibike in three ways: imported from Strava if you connect it, imported from Apple Health if you enable it, or entered by hand.

Apple Health data

If you enable the Apple Health import in the iOS app, maibike reads your cycling workouts — their distance, duration, and route — and saves them to your maibike account as rides. It reads nothing else from Health, and it never writes to Health.

Health data is used for one purpose: showing your rides and calculating wear on your bikes and components. It is never used for advertising or marketing, never sold, and never shared with third parties. You can turn the import off at any time in iOS Settings, under Privacy & Security → Health → maibike.

Location data

maibike does not track your location in the background. Location comes only from the rides you import — the route recorded by Strava or your watch. A ride's starting point is converted into a rough place name (for example “Marin County”) so you can recognise where a bike was last used.

Services we rely on

maibike is hosted on Vercel, with data stored in Supabase (database and file storage) and Vercel Blob (photos). It also uses:

  • Strava — only if you connect it, to import your activities and gear.
  • Anthropic (Claude) — powers the AI features, such as identifying components or answering questions about a bike. Only the relevant bike or component details are sent, and they are not used to train models.
  • Mapbox and OpenStreetMap (Nominatim) — to draw maps and turn ride coordinates into place names.
  • Resend — to send the occasional transactional email.

Your data is not sold, rented, or shared with advertisers. Nothing beyond the above leaves the app.

Sharing between riders

You can share a bike with another maibike user, and you can publish a journey page as a public link. Both are things you choose to do. A shared bike is visible to the person you shared it with; a published journey link is visible to anyone who has the URL. You can revoke either at any time.

Keeping and deleting your data

Your data is kept for as long as your account exists. You can delete individual bikes, rides, components, and photos from within the app at any time. To delete your account and everything in it, email admin@nickspitzer.com and it will be removed.

Passwords are stored hashed, never in plain text. Access to your account requires your login, and traffic is encrypted in transit. No system is perfectly secure, but your data is not used for anything beyond running the app for you.

Children

maibike is not directed at children under 13.

Changes and contact

If this policy changes materially, the date at the top will be updated. Questions, requests, or deletions: admin@nickspitzer.com.