Last updated: 16 September 2026
Starlore collects no personal data. There are no accounts, no sign-in and no servers. The app runs entirely offline, and the developer cannot see any of your information.
None. The app does not collect, transmit or store information that identifies you.
The following never leaves your device and is never sent to the developer or any third party.
| Item | Purpose | Where it is stored |
|---|---|---|
| Location (latitude / longitude) | Computing the sky, twilight, Moon and planets for where you are | On device only. Coordinates saved with an observation can be deleted by you. |
| Compass, gyroscope, accelerometer | Drawing the sky in the direction the device is pointing | Not stored — used in real time and discarded |
| Observing journal, photos, sketches | Records you write yourself | On-device SwiftData store |
| App settings (stage progress, red-light mode, …) | App behaviour | On-device UserDefaults |
You can turn location off at any time in iOS Settings ▸ Starlore ▸ Location. Without the permission the app still works — it computes for Seoul (37.57N, 126.98E) and says so on screen.
The in-app purchase "Unlock Starlore" is handled by Apple StoreKit. Apple processes the payment; the developer never receives card numbers or any other payment details. The only thing the app knows is whether the purchase was made, and it checks that on your device using Apple's receipt. Apple's handling of your data is governed by Apple's own privacy policy.
The photo library is accessed only when you attach a picture to a journal entry. Only the photos you pick are copied into the app's own storage, and they are never uploaded.
Deleting the app removes every observation, photo and setting stored on the device. Individual entries can be deleted in the Journal, and you can back them up with CSV or PDF export.