A private, fully-offline productivity app for focusing on what matters
About this app
Mushotoku (無所得) is a Zen term for acting without grasping for a result. It's a deliberately odd name for a productivity app — and that's the point.
Most productivity apps want you to optimize every minute and defend every streak. Mushotoku goes the other way: work out the few things that actually matter today, do them, and let the rest go. It's a tool for focusing, not for filling.
Everything you write, track, and plan stays on your device. Mushotoku ships with no INTERNET permission at all, so it physically cannot send your data anywhere — the option was never built. Your data is stored encrypted on the device.
Features:
Plan & organize * Calendar with appointments and an offline holiday layer * Tasks to manage your to-dos * Habits you can build and track
Capture & reflect * Notes with markdown editor, a clean read view and a trash with restore * Gratitude journal with a searchable archive * Mood tracking over time
Wellbeing * Meditation timer with three bells and Buddhist quotes * Track caffeine intake and see how much caffeine is still active at bedtime
Money * Finance tracker with custom categories * Detailed reports and savings potential
Licensed under GPL-3.0-or-later, by Tom Frischmuth.
What's New in v1.3
Imported from the F-Droid repository index.
- - Appointment reminders are more reliable: they are rescheduled after a reboot and can no longer be dropped during app startup.
- - App lock: enabling the biometric lock now gives you a recovery code, so you keep access even if the device's biometrics change. Resetting (which erases all data) now asks for confirmation.
Version history
Jul 4, 2026 · 33.1 MB · Android API 33–37 · code 4
Imported from the F-Droid repository index.
- - Appointment reminders are more reliable: they are rescheduled after a reboot and can no longer be dropped during app startup.
- - App lock: enabling the biometric lock now gives you a recovery code, so you keep access even if the device's biometrics change. Resetting (which erases all data) now asks for confirmation.
SHA-256 c5276807f5f80cab8188fd4b56aa3f563688cc7176defdfc5e1513142d94fdd1
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 com.mushotoku.app 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
No earlier build is on record for Mushotoku, so there is nothing to roll back to yet. When a second version is published, this section will explain how to move between them safely.
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 Mushotoku, and a listing is removed when the evidence for it stops holding up.
Get Mushotoku
Every source we list for com.mushotoku.app 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
c5276807f5f80cab8188fd4b56aa3f563688cc7176defdfc5e1513142d94fdd1
Signing certificate
e4fa6e5169a8783d064bf395b3633d20099ab1920e95385fe925a29f8f93d1f9
Permissions Required
Previous Versions
No earlier build is on record — this is the first release we have listed.
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.