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Coordinate Joker

Coordinate Joker

F-Droid Open Source  |  Navigation

10 Downloads 18 Views v1.4 2.94 MB 4.1+
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 (2.94 MB)

Editor's Overview

Coordinate Joker is a navigation application developed by F-Droid Open Source, packaged as a single Android APK of version 1.4 weighing in at 2.94 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

  1. Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
  2. File size is a light 2.94 MB, so it installs quickly even on modest connections.
  3. This build is signed by "F-Droid Open Source" — always verify the developer name matches what's listed on the app's official store page before installing an update.
  4. After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
  5. We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

Coordinate Joker is a geocaching add-on for application Locus Map, but works also with other apps that can display waypoints from a gpx, kml, or kmz file.

Finally you made it to the pre-final after 3 hours and several miles. A final number to be determined: Count the planks of the bridge ... Hey, where has the bridge gone?! It was replaced by a pipe beneath the ground. What now ...? Look up the logs for potential telephone jokers? No, then I'd rather draw a line in my map, where the final could be located given the formula and missing x ... But wait - Coordinate Joker will do it for you. Just enter the coordinate formulas and it will send the resulting waypoints to your preferred Geocaching app. With a bit of luck, one point will appear close to some path while the others may be far away. Then where would you look for the final? :)

Details

Versionv1.4
Size2.94 MB
DeveloperF-Droid Open Source
CategoryNavigation
Packagecom.github.siggel.coordinatejoker
Android4.1+
Last UpdatedOct 29, 2026
Downloads10

Frequently Asked Questions

Is Coordinate Joker free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Coordinate Joker require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Coordinate Joker safe to install?
We link to the exact APK published by F-Droid Open Source. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Coordinate Joker?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Coordinate Joker

  1. Tap the Download APK button above and save the file to your device.
  2. Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
  3. Open the downloaded com.github.siggel.coordinatejoker.apk file from your Downloads folder.
  4. Tap Install and wait for Android to finish.
  5. Open «Coordinate Joker» by F-Droid Open Source and grant only the permissions it actually needs.
  6. Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.