Privacy policy

1. Publisher

The Lên app and the website lenwithme.app are operated by the publisher of Lên. Contact privacy@lenwithme.app. The app’s display name is Lên. The Android application id is vn.trailvn.app.

2. Scope

This policy covers the Lên Android app, the iOS app when it is released, and lenwithme.app. You can browse routes and record a trip on the device without an account.

3. Data we collect

• Account data, only if you create one: email, username, display name, and a hashed password. We do not read the original password.
• Precise location while you are recording a trip or have SOS open. The app does not request background location while you are not recording.
• The GPS track, distance, and elevation, stored on the device. A GPX export stays on your device.
• On-device motion sensors, used to filter GPS points and detect movement. They are not sent as an identity profile.
• Reviews and trail-condition reports, after you sign in. They are tied to your account and may be moderated before they are public.
• Live location shared with a group, only when you turn that sharing on. Members of that group can see it.
• Approximate coordinates sent to Open-Meteo for a route forecast. Your name and email are not sent with them.
• The map area you are viewing, sent to OpenFreeMap to load map tiles.
• Partner-banner impressions and clicks: sponsor id and placement. No advertising id, and not tied to your name.
• Porter or operator contact forms: name, phone or email, and the message.
• Account-deletion requests: email and display name if you provide it.

4. Why we use it

• To draw the track, compute distance and elevation, warn when you leave the route, and export GPX.
• To keep you signed in so you can review a route, report conditions, and join a group.
• To show weather and the map.
• To count banner views for the sponsoring partner. Banners are not shown while recording or during SOS.
• To answer porter, guide, and operator enquiries.
• To process account-deletion requests.

5. Location

Location is sensitive. The app reads GPS only after you start recording, while recording, or while SOS is open. A system notification stays visible during the recording service. The track stays on the phone. We do not sell location and we do not track you when you are not recording.

6. Who receives data

• Lên’s servers at lenwithme.app store accounts, reviews, condition reports, groups, and deletion requests.
• Open-Meteo receives approximate coordinates for the weather forecast.
• OpenFreeMap receives map-tile requests.
• A sponsoring partner receives impression and click counts for their own banner, not a list of users.
• Group members receive the live location you chose to share in that group.
• Your carrier and the emergency number only if you place the call yourself to 115, 112, 113, or 114. The app does not call for you.

7. What we do not do

We do not sell personal data. The app has no cross-app advertising SDK, no advertising id, and no third-party analytics SDK. Partner banners are Lên content, not an ad network.

8. Retention

• Account, reviews, condition reports, and group locations: until you delete the account, then for up to 30 days while server copies are removed.
• Tracks on the device: until you delete them in the app or uninstall. The server cannot erase files on the phone.
• Your own Android backup may keep app data in your Google account. That backup is controlled by the phone and Google.
• Banner counts that cannot identify a person are kept to reconcile a sponsorship.
• Porter and operator messages are kept long enough to reply and to record a contract, then deleted.

9. Account deletion

Request deletion on the Delete account page, or in the app under Profile. You do not have to make a purchase or give a reason. That page lists what is deleted and what is kept.

10. Children

Lên is not directed at children under 13. We do not knowingly collect their data. Accounts are for people aged 16 or older. If you believe we hold data of a child under 13, email the address below.

11. Security and changes

Connections to lenwithme.app use HTTPS. Database rules limit account data to that account. When this policy changes, the effective date at the top changes and the new text is published at this URL.

12. Contact

Privacy questions: privacy@lenwithme.app. This page is the privacy-policy URL for Google Play and the App Store.