FAQ & troubleshooting

“My blue triangle isn’t showing”

Three possible reasons:

  1. GPS isn’t on. Tap the crosshair button in the right-side column. Goes from grey → blue. See The map screen → Follow-me.
  2. Location permission isn’t granted. Go to your phone’s Settings → Apps → ApexGPS → Permissions → Location → Allow only while using the app, Precise location. Then re-open ApexGPS.
  3. No GPS fix yet. Indoors, near tall buildings, or in a deep canyon, first acquisition can take 30 seconds or more. Step outside if possible.

“The map keeps dragging back to me every few seconds”

That’s the locked follow-me state. Drag the map once — the crosshair button turns a lighter blue and the map will now stay wherever you pan it. The triangle still updates; only the camera stops chasing. To re-centre: tap the crosshair button.

See The map screen → Follow-me.

“How do I turn off GPS entirely?”

Long-press the crosshair button. GPS stops, triangle disappears, battery saved.

Tap-to-toggle from the locked state also turns it off, but a long-press skips the re-centre animation — useful when you’ve panned away and don’t want the map jumping back before turning off.

If the link is like https://apexgps.duttra.de/loc?lat=...&lon=..., tap it directly from your message. With ApexGPS installed, it opens in-app with a red bullseye marker. Without ApexGPS, it opens a web page with a map preview + a link to install.

Other types of map links (Google Maps URLs, etc.) open in whatever maps app you prefer — they don’t tie into ApexGPS.

See Share → Receiving a shared location.

“Can I record a new track while hiking?”

Not in this version. Live track recording (your path as you walk) is planned for a future release. Right now tracks come from importing GPX files (yours from another app, or someone else’s).

“How much storage does the app use?”

The app itself is small (~10 MB). Storage grows based on:

Clear browse cache via Settings → Storage → Clear. Delete saved regions via Maps hub → tap a region → Delete.

“The map is slow when I zoom in / pan”

A few things to try:

  1. Too many tracks loaded. Go to Tracks list → filter by visibility → hide the ones you’re not using today. Or bulk-delete old imports.
  2. Heavily-detailed tracks. Use Settings → Data → Optimize all tracks to simplify — point counts drop ~90% without visible change.
  3. Low zoom with many waypoints. Waypoints cluster automatically at low zoom (single dot with a count) — tap a cluster to zoom into it. If your phone is still struggling, the cluster threshold in code is fixed; consider hiding tracks instead.
  4. Old phone. ApexGPS targets modern Android. If yours is pre-2020, some performance issues are unavoidable with 500+ tracks on screen.

“I can’t see the new version in the Play Store”

You’re a closed-testing tester and just got notified there’s an update. If it’s not appearing:

  1. Play Store → profile icon (top right) → Manage apps & deviceUpdates available → refresh. If ApexGPS appears, tap Update.
  2. Still nothing? Open the tester invite link again (the one you first used to join the test). Then force-stop Play Store, re-open, search ApexGPS.
  3. Still nothing? Settings → Apps → Google Play Store → Storage → Clear cache. Re-open Play Store, search again.
  4. Google’s CDN rollout takes 2-24 hours after “auto-published.” If you just heard about the update, wait a few hours.

“Can I use ApexGPS without giving it location permission?”

Mostly yes. You can import GPX files, view tracks, plan routes, measure distances, manage waypoints, and pre-download map regions — all without location. What you lose:

“Does the app send my location anywhere?”

No. ApexGPS makes no network requests with your location. The only outbound network activity is fetching map tiles, which is indistinguishable from browsing a map — map servers see an IP + the tile coordinates, nothing about you. See the privacy policy.

Sharing via the Share button is entirely user-initiated — you choose the app (WhatsApp, etc.) and recipient.

The link deep-links into ApexGPS only on devices where the Google-issued App Links verification has completed. Fresh installs sometimes need a first launch of the app before verification kicks in. Have your friend:

  1. Open ApexGPS once, grant location permission, close it.
  2. Re-tap your shared link.

Now it should open in the app directly. If it still opens in a browser, Android may be offering a chooser — they can pick “Always open in ApexGPS” from the chooser dialog.

“Can I restore an ApexGPS backup on iPhone?”

No. ApexGPS is Android-only. The backup format is specific to the app.

“Where is my data stored physically?”

On your phone, in ApexGPS’s private app storage (/data/data/com.apexgps.app/ on rooted access — otherwise not directly reachable). Tracks + waypoints live in a SQLite database; settings in a preferences file; tiles as image files on disk.

Nothing is uploaded anywhere. To back up, use Backup & restore.


Still stuck? sandwalker.one@proton.me — bug reports welcome.