Privacy policy · September 30, 2026 (updated for Android)

Yeoyugil is provided by OOTSSU. This policy describes the iOS and Android apps, including the optional one-time Pro purchase.

Your travel days

Names, dates, places and itineraries are stored locally on your device. We do not run a server that stores or syncs your itineraries. Device backups may include this data according to your Apple (iOS) or Google (Android) backup settings. Delete a day within the app to remove its local data.

Place search and directions

When you search or calculate a route, the map service receives your search terms or the coordinates of your places, along with the network information any internet request carries (such as your IP address). On iOS this is Apple Maps. On Android, place searches go to OpenStreetMap Nominatim (or, if it is unreachable, your device’s geocoding service), and walking routes are calculated by the FOSSGIS routing server from OpenStreetMap data. The app does not request location access, track your movements, or upload itineraries to OOTSSU. Each provider processes requests under its own privacy policy.

Purchases

RevenueCat and Apple (iOS) or Google Play (Android) process purchase history, entitlement status, an app user identifier and technical information needed to deliver, restore and troubleshoot purchases. RevenueCat provides purchase reporting. We do not receive your payment card details. Transactions may be retained as required for service, accounting and legal obligations. Deleting an itinerary does not delete your Apple, Google or RevenueCat transaction records.

No advertising

The app contains no advertising SDK and does not sell personal data or use cross-app advertising tracking.

Your choices and contact

No app account is required. You can delete individual travel days. For access or deletion requests concerning purchase-related data, contact ootssu@ootssu.com and identify the app and relevant purchase. We may need to verify the request. You can manage purchase information with Apple or Google.

Service providers

Apple: https://www.apple.com/legal/privacy/ · Google: https://policies.google.com/privacy · OpenStreetMap Foundation (Nominatim): https://osmfoundation.org/wiki/Privacy_Policy · FOSSGIS routing: https://www.fossgis.de/datenschutzerklaerung/ · RevenueCat: https://www.revenuecat.com/privacy/

Changes

We update this page when app data practices change. The date above identifies this version.