Cookie Policy

Last updated: 22 August 2026

This Cookie Policy explains what OSO stores in your browser, what it is for, and how to clear it.

OSO sets no cookies

OSO does not set cookies. The app keeps the small amount of state it needs in your browser’s local storage instead, which is not transmitted with every request the way a cookie is, and is never readable by another website. We use no advertising cookies, no cross-site tracking and no third-party marketing tags of any kind.

What we store, and why

Everything below is stored on your device under keys beginning allure_. All of it is strictly necessary for the Service to work as you have set it up:

• Your sign-in token — keeps you logged in between visits.
• Display preferences — units, your primary sport, your dashboard layout and the range your fitness chart opens on.
• Your own training entries — races, goals, results, gear and planned sessions, kept locally so the app opens instantly and keeps working when the network does not.
• Onboarding state — whether you have completed the welcome tour, so it is not shown to you again.
• A sync timestamp — when your accounts last synced, so opening the app does not re-sync more often than every ten minutes.

Analytics

We run no analytics on OSO. No Google Analytics, no product-analytics SDK, no session recording, no heatmaps. If that ever changes we will update this Policy and, where the law requires consent, ask for it before anything is set.

Third parties

Two things reach outside OSO while you use it:

• Activity maps. When a session with GPS is displayed, the map tiles are requested from OpenStreetMap. That request necessarily reveals your IP address to them. No account information is sent, and no map is loaded for a session without GPS.
• Connecting a device or platform. Choosing to connect Strava, Garmin, Wahoo, Polar or Hammerhead sends you to that company’s own sign-in page, where their cookies and their privacy policy apply, not ours. We receive only the access token that authorises the connection, and you can revoke it at any time from Settings.

Managing your storage

Signing out clears your token. Clearing site data for trainoso.com in your browser removes everything listed above; you will be signed out and your preferences will return to their defaults. Nothing here is required for your account to survive — your training data lives on our servers, and clearing local storage does not delete it. Deleting your account and its data is a separate control, in Settings.

Contact

Questions: legal@trainoso.com.