A simplified gravity simulator for Android, built with libgdx.
About this app
Controls
Touch gestures supported:
Single tap:
If panning is enabled, follow the tapped particle.
Otherwise, create a new particle.
Double tap: Put camera focus on a particle.
Pinch: Zoom the view.
Panning / Dragging:
If panning is enabled, it will pan the view.
Otherwise, it will create a particle with momentum.
Option bar:
Small, Medium, Large buttons: Choose a particle size.
Pan / Follow button: Toggle between panning/following or sling-shotting particles.
Settings menu (cog icon):
Pause: Toggle pause. Particle trails: Show / don't show. Collision mode: Bounce / merge particles. Reset zoom: Resets the zoom to default. Reset particles: Removes all the particles from the field.
Licensed under Apache-2.0, by Andrés Villarreal.
What's New in v2.3
Imported from the F-Droid repository index.
Version history
Jul 5, 2021 · 1.3 MB · Android API 14–30 · code 23
Imported from the F-Droid repository index.
SHA-256 05838298c9d70edff22dcc3590c287a36bf9cd62fc73b64beb2bbc24ba281bca
Jun 30, 2021 · 1 MB · Android API 14–30 · code 21
Imported from the F-Droid repository index.
SHA-256 2bcfecfc54871684bc58f2f9b4d31d90253bf33ed0f4ba5cbca91634626ef2d5
Oct 31, 2013 · 1.1 MB · Android API 5–17 · code 1
Imported from the F-Droid repository index.
SHA-256 dea4e47b7d12e3af35fbcda186a8c82369dc1a44e9d029e32607c6a0a9ef1145
Will it run on your device?
87%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.kaeruct.glxy is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall GLXY first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of GLXY, and a listing is removed when the evidence for it stops holding up.
Get GLXY
Every source we list for com.kaeruct.glxy is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
05838298c9d70edff22dcc3590c287a36bf9cd62fc73b64beb2bbc24ba281bca
Signing certificate
436bc5008cc49bd0b37ee2861340a669882be434dd91845d695efbd683b1c4fc
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.