Diabetes diary and food database
About this app
Diaguard is a free of cost, ad-free and open source app for people with diabetes mellitus.
It replaces the handwritten diary and helps the user to quickly and easily record, evaluate and export his blood sugar and other important data as PDF or CSV. Thanks to the clearly arranged interface, the user always has an overview of his diabetes. The app also provides information on several thousand foods including carbohydrates and other nutrients.
Features
• Quickly and easily track your blood glucose, insulin, carbohydrates, A1c, activity, weight, pulse, blood pressure and oxygen saturation • Customizable units • Visualize your blood glucose level in a graph • Detailed logs of your data • Food database with thousands of entries • PDF and CSV export • Backup • Reminder functionality • Estimated HbA1c • Statistics • Dark Mode
Licensed under GPL-3.0-or-later, by Faltenreich.
What's New in v3.15.1
Imported from the F-Droid repository index.
Version history
Sep 23, 2025 · 11.6 MB · Android API 21–36 · code 68
Imported from the F-Droid repository index.
SHA-256 1355f824abc85e7601b050008fbeb5330fa8c0034a4c012c2b8189d2de6c222e
Sep 20, 2025 · 11.6 MB · Android API 21–36 · code 67
Imported from the F-Droid repository index.
SHA-256 b4cba4e42b479354da40a1f133e0ccab458b9e82fa8763f173aec162a744ca25
Jun 7, 2025 · 11.6 MB · Android API 21–35 · code 66
Imported from the F-Droid repository index.
SHA-256 d4151c43b1d6a06bea4eb5331e3be57b53427465fc1bcbd2fd51fe1bfc613d11
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- 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 com.faltenreich.diaguard 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, 3.15.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Diaguard: Diabetes Diary 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 Diaguard: Diabetes Diary, and a listing is removed when the evidence for it stops holding up.
Get Diaguard: Diabetes Diary
Every source we list for com.faltenreich.diaguard 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
1355f824abc85e7601b050008fbeb5330fa8c0034a4c012c2b8189d2de6c222e
Signing certificate
6f67b555a0fa64c4f0f16c85fa5796e407e9f9977db35406e62e0f42346045cd
Permissions Required
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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