Privacy-first UnifiedPush distributor with an optional self-hosted server
About this app
Prism is a UnifiedPush distributor that uses Mozilla's push server for transport. It optionally pairs with a self-hosted Prism server, which can monitor your Proton Mail inbox and route notifications to Signal, Telegram or this app.
The Prism server also accepts notifications from any source via a webhook API compatible with ntfy.
Licensed under AGPL-3.0-only, by lone-cloud.
What's New in v1.3.1
Imported from the F-Droid repository index.
- - new: Android 17 local network permission request + Restart Service button
- - fix: don't re-prompt local network permission after user responds
Version history
Jun 30, 2026 · 3.3 MB · Android API 31–37 · code 10301
Imported from the F-Droid repository index.
- - new: Android 17 local network permission request + Restart Service button
- - fix: don't re-prompt local network permission after user responds
SHA-256 b3aaceafcdf0904505da643f48d025841f9fdee8548dd550f281218e2634ef50
Jun 9, 2026 · 3.3 MB · Android API 31–36 · code 10203
Imported from the F-Droid repository index.
- - fixed: tapping a notification action could cause an ANR (app not responding) popup on slow connections
- - dep updates
SHA-256 8c17063829586c36c3185d88c6359f5d3c7647dcca815f5091e2d9c5d066acdc
Apr 27, 2026 · 3.3 MB · Android API 31–36 · code 10202
Imported from the F-Droid repository index.
- - switching or removing your Prism server now properly deletes your registered apps from the old server and removes them from the app list
- - changing to a new server no longer deletes your apps from the old one if the new server fails to connect
- - registration notifications now show the actual app name instead of "Prism"
- - API key field shows an error if the key contains unsupported characters
- - other minor improvements and bug fixes
SHA-256 e5c712df939ae92ced75affcb9908a08867ea042f47efc30769f7d0bdef931b1
Will it run on your device?
74%
- Targets newer Android builds, so legacy devices may be excluded.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
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 app.lonecloud.prism 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, 1.2.3 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Prism 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 Prism, and a listing is removed when the evidence for it stops holding up.
Get Prism
Every source we list for app.lonecloud.prism 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
b3aaceafcdf0904505da643f48d025841f9fdee8548dd550f281218e2634ef50
Signing certificate
fd2986457a6a6e4dd9056b3ca5a69e0edfd5aa9dd45b3d78db21e8ad72fbaead
Permissions Required
What each permission lets Prism do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
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.
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