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Journal Multilingual

Open-source drug use tracker with interaction checker and multilingual support.
New in version 11.7
- Rebuilt navigation: smoother transitions and new deep links
- New "Keep bottom menu visible" setting under Preferences > UI
- Top bars now hide while scrolling on Journal, Settings and Safer Use
- Stats widget: search/sort substances, 7/30/90-day window, localized labels
- Performance improvements for search, journal lists and widgets
- Expanded substance catalog with better Chinese names
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.
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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 11.7 (1100700) suggested Added on Sep 22, 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 6.3 MiB PGP Signature | Build Log

    • New in version 11.6
    - Added locale picker for calendar dates.
    - Consolidated UI, privacy, language, and icon settings into Preferences.
    - "Open Link in Browser" setting now applies to all links.
    - Stats can now group by actual ingestion time.
    - Fixed search bar status-bar overlap; localized timeline info.
    - Bottom nav hides on nested screens and auto-hides on scroll.
  • Version 11.6 (1100600) - Added on Sep 02, 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 5.5 MiB PGP Signature | Build Log

    • New in version 11.5
    - Restored the full adaptive color palette (111 colors).
    - Fixed the icon picker not switching icons.
    - Added a 12/24-hour clock option in Settings.
    - Fixed scrolling jank in the journal.
    - Fixed tab-switching jank.
    - Improved search/filter responsiveness in the journal.
  • Version 11.5 (1100500) - Added on Aug 26, 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 5.5 MiB PGP Signature | Build Log

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