(SECUSO) Create lists of tasks which can be individually managed.
About this app
The Privacy Friendly To-Do List can be used to keep outstanding tasks in mind and organize a personal schedule. This application allows to create lists of tasks which can be individually managed. Each list contains a set of tasks. Each task can have a deadline, a reminder time and a list of subtasks. By setting a reminder time the user will be informed by a notification. It is possible to display all tasks in a calendar, to protect the app with a secret pin and to sort and prioritize tasks within a list. Colors indicate the urgency of a task (taking the deadline into account).
Features of Privacy Friendly To-Do List
1. PIN protection Open the Settings menu to setup a PIN protection for your application. The PIN needs to be a number with 4 digits. You are asked for it every time you start the application / start the main view.
2. Reminder You can set a reminder to your tasks that will notify you if a deadline is approaching. Settings provide you the possibility to enable a notification sound.
3. Widget In addition, this app provides a widget that you can add to your device’s home screen. The widget presents you tasks that belong to a chosen list. Clicking on a task or its checkbox leads to the main view of Privacy Friendly To-Do List.
4. Progress by subtasks By default, progress can be chosen freely by the user when creating or editing a task. To-Do List gives the opportunity to automatically compute and show the progress of a task dependent on its done subtasks. Therefore go to Settings and enable progress by subtasks.
Our Privacy Friendly App differs from other applications with respect to three aspects:
1) Minimal permissions Privacy Friendly To-Do List does not use more permissions than are strictly necessary to provide its functionality.
2) No advertisement Privacy Friendly To-Do List completely relinquishes advertisement. Many other free apps in the Google Play Store dazzle annoying advertising which also shortens battery life.
3) No tracking Privacy Friendly To-Do List does not use any trackers.
Privacy Friendly To-Do List is part of the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. More information at: https://secuso.org/pfa
You can reach us via X - @SECUSOResearch https://x.com/secusoresearch Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/ Job Offers - https://secuso.aifb.kit.edu/english/Job_Offers.php
Licensed under GPL-3.0-or-later, by SECUSO - Security Usability Society.
What's New in v3.4.0
Imported from the F-Droid repository index.
Version history
Jan 18, 2026 · 8.4 MB · Android API 21–36 · code 103
Imported from the F-Droid repository index.
SHA-256 80c6f68ec94a561157ad8db4d335003d2b2c8aeba2b649ab9f446b44743fc0af
Oct 20, 2025 · 8.3 MB · Android API 21–35 · code 102
Imported from the F-Droid repository index.
SHA-256 420481d9524ba1854a5cd9f13589160f8b60456e53ec1ecd070de9a04631bb00
Oct 18, 2025 · 8.3 MB · Android API 21–35 · code 101
Imported from the F-Droid repository index.
SHA-256 3d508301d7d3ade8c984a172daf5e1037d7ed678bc71d074636accd2795c7e27
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 org.secuso.privacyfriendlytodolist 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, 3.3.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Todo List (PFA) 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 Todo List (PFA), and a listing is removed when the evidence for it stops holding up.
Get Todo List (PFA)
Every source we list for org.secuso.privacyfriendlytodolist 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
80c6f68ec94a561157ad8db4d335003d2b2c8aeba2b649ab9f446b44743fc0af
Signing certificate
c1ef57684f78c5475dfbfafb34e961e31d3b5fff393bf82577e1fe5fa7eac3fe
Permissions Required
What each permission lets Todo List (PFA) 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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