01 / SUMMARY
Just-Go does not run a user-data backend.
Bundled metro networks and station packs are read locally.
Home, Work, and custom place tags are stored on the device.
Where supported, the rider’s device contacts the named operator—not a Just-Go proxy.
Device-only operator snapshots and downloaded packs can be removed in Settings.
Round 36 ships no personal station-photo feature or station-sign scanner.
02 / ON YOUR DEVICE
Your private layer remains private.
| Record | Purpose | Sharing |
|---|---|---|
| Quick Tags | Remember Home, Work, stations, and other frequently used places. | No account or synchronization service receives them. |
| Trip records and preferences | Support local history, accessibility choices, and app behavior. | Not published as transit data. |
| Downloaded city packs | Provide locally available city data. | Stored in the app container and removable with Clear Cache. |
| Official station snapshots | Provide a labeled last-good fallback when an operator is temporarily unavailable. | Application Support, backup-excluded, schema-versioned, and device-only. |
03 / NETWORK REQUESTS
Online features identify their provider.
| Action | Provider contacted | Information involved |
|---|---|---|
| Place search, walking route, or current location | Apple services | The request Apple needs to return the selected map or route result, subject to Apple’s policies. |
| Open supported station details | Beijing, Shanghai, Guangzhou, or Hangzhou operator | A reviewed station identifier and the fixed request required by that source; not the rider’s location, tags, or trips. |
| View Hong Kong arrivals | DATA.GOV.HK | Official station and line identifiers; not the rider’s location, tags, or trips. |
| Open an official resource | The linked transit operator or government site | Normal web-request metadata determined by the destination and network. |
Just-Go does not combine these provider requests into a Just-Go profile.
04 / CACHE AND DELETION
Clear Cache removes the cached layers.
After confirmation, Settings → Clear Cache deletes downloaded city packs, in-memory pack copies, in-flight downloads, stored station-information snapshots, and URL caches.
Your Quick Tags, trips, records, preferences, and settings are not deleted by this action. Bundled cities continue to work from the app bundle.
Deleting the app removes its local container under the normal iOS deletion behavior. Device backups and operating-system services remain governed by Apple.
05 / EXTERNAL LINKS
A reviewed link is still external.
Just-Go stores reviewed URL metadata for transit resources. It does not make a destination page, PDF, image, or map part of the app merely by linking to it. Opening a destination is a rider action and places that request under the destination provider’s privacy policy.
06 / THIS WEBSITE
A static site with one preference.
- Language preferenceThe site may store the selected language locally and in a short-lived cookie so navigation remains consistent.
- System fontsThe site does not contact a third-party font service.
- Hosting metadataGitHub Pages and ordinary network infrastructure may receive standard request metadata such as IP address, browser headers, requested path, and time.
- No website accountThe site has no sign-in, form submission, analytics SDK, advertising tracker, or payment system.
07 / CHANGES
The policy changes when the product changes.
If Just-Go adds account sync, uploads, analytics, advertising, a community backend, another live provider, or a materially different use of local records, this policy will be revised and the effective date will change.