Diaguard: Diabetes Diary

Diabetes diary and food database

Philipp Fahlteich · com.faltenreich.diaguard

Not rated yet 10K+ downloads v3.15.1 11.7 MB Android 5.0+ PEGI 3 · Everyone

Download APK 11.7 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v3.15.1 (68)
Updated: Jan 18, 2026 (9 months ago)
APK size: 11.7 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Medical (app)
Listed since: Jan 21, 2021 (at least)
Permissions: 5
Website: diaguard.wordpress.com
Developer contact: [email protected]

About this APK

Diaguard: Diabetes Diary is an app by Philipp Fahlteich in the Medical category, listed since at least January 2021. It has no native code, so it runs on any Android processor.

Since version 3.11.1, the minimum Android version rose from 4.1 to 5.0. It asks for 5 permissions, none of them sensitive. It asks for the same permissions as version 3.15.0.

What's new in v3.15.1

- Edge-to-edge support for Android 14 and older - Keyboard does not overlap content anymore

Description

From the listing uploaded by “appupdater”.

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, HbA1c, activity, weight, pulse, blood pressure and oxygen saturation - Customizable units - Visualize your blood glucose level in a graph - Detailed logs of your data - Settings for basal rate, correction factor and meal-bolus-factor - Food database with thousands of entries - PDF and CSV export - Backup - Reminder - Estimated HbA1c - Statistics - Dark Mode Open Source Diaguard hosts its source code on: https://github.com/Faltenreich/Diaguard

Version history

4 versions are listed, going back to v3.11.1. Since v3.14.0 it requires Android 5.0+.

v3.15.1 LATEST Jan 18, 2026 11.7 MB TRUSTED v3.15.0 Sep 17, 2025 11.7 MB TRUSTED v3.14.0 Jun 3, 2025 11.6 MB TRUSTED v3.11.1 Aug 30, 2023 11.3 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 18, 2026.
Certificate issued to “Philipp Fahlteich” This is the certificate of the Google Play version.
Same certificate as the 3 other versions checked

Store checks and file details

Developer signature verified Jan 18, 2026
Validated against Google Play Jan 18, 2026
Signed byCN=Philipp Fahlteich, L=Rosenheim, ST=Bavaria, C=49
Signing certificate (SHA-1)A7:2F:2F:5C:CA:4A:51:15:0B:DC:A7:86:EC:90:2F:07:A9:6F:79:DE
File MD56be30c0d1e981f415d0e682ee8db7116
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (5)

Diaguard: Diabetes Diary requests 5 permissions, none of them sensitive.

Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.faltenreich.diaguard.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Diaguard: Diabetes Diary APK: questions and answers

Is there a version of Diaguard: Diabetes Diary for older Android phones?

The current version needs Android 5.0 or later. Version 3.11.1 is the newest listed build that installs on Android 4.1 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 3.11.1 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Diaguard: Diabetes Diary APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 3 other versions checked. After downloading, check that the file's MD5 is 6be30c0d1e981f415d0e682ee8db7116.