Busya (the "Service") is a free app that shows nearby bus stops and live bus arrival times in Korea based on your current location. This policy explains what information the Service uses and how it is handled.
| Information | Purpose | Retention |
|---|---|---|
| Current location (latitude/longitude) | Finding nearby stops, choosing buses in your area, finding the closest stop on a route, finding routes to a destination (bus and subway) | Not stored with your identity. Coordinates rounded to about 10 m and the lookup results are cached in server memory for up to 24 hours to speed up repeat lookups, then deleted automatically. |
| Province / city / district name (computed on your device from your location) | Deciding which city's "Bus 3" you mean, and picking the nearest branch when you search for a place | Not stored |
| Searched bus numbers and destinations (stop or place names), viewed stops and routes | Looking up bus arrivals, finding buses to a destination | Only the lookup results are cached briefly in server memory (20 seconds to 24 hours) |
| Favorites, last location, alert settings | Showing your buses right away, running alerts | Stored on your device only; deleted when you uninstall the app |
| Transit card data read over NFC (balance, recent activity, card number) | Showing it on the Transit card balance screen (only when you hold a card to the phone) | Shown on screen only — not stored, and never sent to our server or anywhere else |
| Advertising ID (ADID), device and app information | Showing ads and measuring ad performance (Google AdMob) | Under Google's policies |
| Recipient | Information | Purpose |
|---|---|---|
| Korea Ministry of Land, Infrastructure and Transport — TAGO public data API | Coordinates, stop and route numbers | Stop, route, arrival and bus location lookups |
| Seoul Metropolitan Government bus information API | Coordinates, stop and route numbers | Seoul bus lookups |
| Busan Metropolitan City bus information system (BIMS) API | Stop numbers | Busan bus arrival lookups |
| Kakao Corp. — public transit route API | Starting location coordinates, destination coordinates | Routes that include the subway |
| NAVER Corp. — local search API | Destination search text, province/city/district name (no coordinates) | Finding a destination by place name |
| Google LLC (Firebase, Google Cloud) | Requests handled while operating the server | Server operation |
| Google LLC (AdMob) | Advertising ID, device and app information | Ads |
We do not sell your information or share it with third parties for any other purpose. Google's use of ad data follows the Google advertising policies.
Notification permission is used only when you turn on an arrival alert. While the alert is on, the app checks your bus's arrival about every 20 seconds and shows it in the notification shade, then notifies you once when the bus is close and turns itself off (after at most 1 hour).
You can delete your advertising ID or turn off personalized ads in your device settings (Settings → Google → Ads, or Privacy → Ads).
The Service requires no account and does not ask for age. We do not knowingly collect personal information from children under 14.
If this policy changes, we will post the new version and its effective date on this page.