Journal Multilingual

Open-source drug use tracker with interaction checker and multilingual support.

New in version 11.4

- Dose summaries now show the absolute amount first with the relative multiplier in parentheses, e.g. "40.8 g (16.3×)".
- Journal search now includes timed notes, so you can find them directly from the journal.
- Removed the dedicated Notes screen; notes are now searched and accessed in place.

Journal Multilingual is an open-source Android app for tracking substance use and accessing harm reduction information.

It is a community fork of PsychonautWiki Journal with additional language support.

Features:
• Interaction checker — check potential risks when combining substances
• Timeline view — visualize substance effects over time
• Substance database — dosage, duration and risk info for over 100 substances, sourced from PsychonautWiki
• Multi-language support — UI and substance data translated into Simplified Chinese, Traditional Chinese, and English
• Pinyin search for Chinese substance names
• Data export and import
• Customizable app icon
• Extension pack system for community-contributed data

Privacy: No accounts. No cloud sync. All data stays on your device.

Note: This is a community fork of the original PsychonautWiki Journal app.

Author: Lolin Verse
License: GNU General Public License v3.0 only
Issue Tracker
Source Code
Changelog
Build Metadata
Reproducibility Status

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid

Version 11.4 (1100400) suggested Added on Aug 19, 2026

arm64-v8a armeabi-v7a x86 x86_64

This version requires Android 8.0 or newer.

It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- show notifications
  
  Allows the app to show notifications
- run at startup
  
  Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
- use biometric hardware
  
  Allows the app to use biometric hardware for authentication
- use fingerprint hardware
  
  Allows the app to use fingerprint hardware for authentication
- prevent phone from sleeping
  
  Allows the app to prevent the phone from going to sleep.
- in.kawaiis.journal.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK 5.4 MiB PGP Signature | Build Log

New in version 11.2

- Substance names now translate in color, dose, time, and custom-unit screens.
- Fixed a crash opening Timeline with no matching consumer data; shows an empty state.
- Delete-everything dialog now requires typing "Delete" to confirm.
- Added end-time ingestions with a range picker, pluralized units, and timeline improvements.
- Added quick custom-unit entry on the dose screen with live conversion preview.

Version 11.2 (1100200) - Added on Aug 10, 2026

arm64-v8a armeabi-v7a x86 x86_64

This version requires Android 8.0 or newer.

It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- show notifications
  
  Allows the app to show notifications
- run at startup
  
  Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
- use biometric hardware
  
  Allows the app to use biometric hardware for authentication
- use fingerprint hardware
  
  Allows the app to use fingerprint hardware for authentication
- prevent phone from sleeping
  
  Allows the app to prevent the phone from going to sleep.
- in.kawaiis.journal.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK 4.9 MiB PGP Signature | Build Log

New in version 10.0

- One-tap timed note entry; new effect notification with "Add note" and "End effects" actions.
- Daily time capsule recap notification for experiences from one year ago.
- Optional app lock via biometric or device PIN.
- Encrypted export with optional password; import verifies password and rejects corrupt data.
- Share timeline and stats as images; delete confirmation now uses a slider.
- Hardened import/export and extension pack handling.

Version 10.0 (1000000) - Added on Aug 05, 2026

arm64-v8a armeabi-v7a x86 x86_64

This version requires Android 8.0 or newer.

It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- show notifications
  
  Allows the app to show notifications
- run at startup
  
  Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
- use biometric hardware
  
  Allows the app to use biometric hardware for authentication
- use fingerprint hardware
  
  Allows the app to use fingerprint hardware for authentication
- prevent phone from sleeping
  
  Allows the app to prevent the phone from going to sleep.
- in.kawaiis.journal.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK 4.8 MiB PGP Signature | Build Log

Versions

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