Engineering tool
About this app
A small tool for aeronautical engineering, providing a model of the standard atmosphere: that is to say the temperature and pressure as a function of altitude. Given a Mach number, you also get the true air speed and conventional air speed.
Licensed under GPL-3.0-only.
What's New in v2.0
Imported from the F-Droid repository index.
Version history
Jun 18, 2021 · 1.3 MB · Android API 14–27 · code 2
Imported from the F-Droid repository index.
SHA-256 8b0e8ed9ede799fac1c03781a6d4fcd6a3e80146a021e94849ddb8462e216c90
Dec 14, 2012 · 0.2 MB · Android API 8–15 · code 1
Imported from the F-Droid repository index.
SHA-256 405625909006fedb094aa3538a88b9bdf6aa9382d6106b192d4c4d6d6141bf32
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
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 fr.bellev.stdatmosphere 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, 1.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Std Atmosphere 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 Std Atmosphere, and a listing is removed when the evidence for it stops holding up.
Get Std Atmosphere
Every source we list for fr.bellev.stdatmosphere 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
8b0e8ed9ede799fac1c03781a6d4fcd6a3e80146a021e94849ddb8462e216c90
Signing certificate
0af1bd0070549fefee648e0a6e3b0baa83d1059cab9270c2dbc382786ba6dd70
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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