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Decision Diary 0.2.0 — public preview

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@adrianjohn141 adrianjohn141 released this 30 Sep 01:35
· 5 commits to main since this release
v0.2.0
bd452c3

The first public preview of Decision Diary, a private, offline Android decision journal.

Download

Download decision-diary.apk below. Requires Android 8.0 (API 26) or later. The download is approximately 412 MB and includes the offline AI model; the app does not download a model after installation.

Website: https://adrianjohn141.github.io/decision-diary/

Included

  • Capture decisions, options, reasoning, expected outcomes, confidence, and review dates.
  • Revisit outcomes with review reminders and personal insights.
  • Notebook surfaces, wax-seal actions, ribbon filters, and manuscript-style reflection entries.
  • Optional on-device AI reflection, with an off switch and personal-note mode.
  • Master passcode, biometric/device unlock, and configurable auto-lock.
  • Local JSON backup import/export with optional passphrase-based AES-256-GCM encryption.
  • No app Internet permission, accounts, analytics, or cloud AI.

Install

  1. Open the downloaded APK on your Android device.
  2. If requested, allow installation from the browser or file manager you are using.
  3. Confirm installation. You can disable that installation permission again afterward.

Back up existing diary entries before replacing an installation or changing signing keys. Never uninstall an existing diary without a backup; uninstalling removes its local data.

Preview status

This is the current signed development/debug build, version 0.2.0, application ID com.decisiondiary, version code 2. It is intended for early testing, not a production signing release. Future production-key builds may require exporting a backup, reinstalling, and importing because Android will not update an app signed with a different key.

Device performance and AI availability vary. The core diary remains usable without AI. Keep backups of important entries, and report issues without including private diary content.

The Room journal uses Android app-private storage. App-lock credentials and optional encrypted backup files are encrypted; the database itself does not use a separate application-level encryption key.

Integrity and attribution

SHA256SUMS.txt contains the SHA-256 checksum of decision-diary.apk. The APK signature was verified before upload. The quantized Qwen3 model is included with license acknowledgements available in the app's Licenses screen. Third-party licenses are bundled in the APK.

Website screenshots show fictional sample decisions from a separate promotional build.

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