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WhatsDown

⚡ Fast encrypted chats for the family 🎉
WhatsDown is a decentralized and secure instant messenger that is easy to use for friends and family.

• Anonymous. Instant onboarding without a phone number, e-mail or other private data.

• Flexible. Supports multiple chat profiles and is easy to setup on multiple devices.

• Extensible. Use mini-apps in chats like shopping lists, calendars or games.

• Reliable. Works under bad and adverserial network conditions.

• Secure. Audited End-to-End encryption safe against network and server attacks.

• Sovereign. Can be run with your own e-mail address or server.

ArcaneChat is a Delta Chat client and was created with a focus on usability, good user experience, and saving data plan. Also the app usually experiments with new features that eventually might get added to the official Delta Chat client.

Main differences with official Delta Chat client:


  • Support for some markdown styles in text messages (bold, italic, strike, etc.)

  • Support for displaying Telegram's animated stickers (.tgs files)

  • Support for SVG images previews

  • Multiple color themes/skins

  • It is possible to disable profiles to completely disconnect them saving data/bandwidth

  • You can easily see the connection status of all your profiles in the profile switcher

  • A videochat instance is set by default

  • Extra option to share location for 12 hours

  • Clicking on a message with a POI location, will open the POI on the map

  • Last-seen status of contacts is shown in your contact list, like in WhatsApp, Telegram, etc.

  • Videos are played in loop, useful for short GIF videos

  • Verified icon is shown in the chat list for the "Device Messages" chat

  • Voice messages have more aggressive compression in "worse quality" mode to save data plan

  • Automatic download of messages limited to 640KB by default

  • Profile's display name is always shown in the app's title bar instead of the name of the app

  • Your avatar is visible to other users in Mailing Lists

  • Can be selected as app to open .xdc files

  • For mini-apps developers: there are some extra features in the WebXDC API, check https://github.com/ArcaneChat/android/#webxdc

  • Better settings organization with additional "Privacy" section


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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 1.58.2 (300007202) suggested Added on May 14, 2025

    arm64-v8a

    This version requires Android 5.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • android.permission.INSTALL_SHORTCUT
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • change your audio settings
      Allows the app to modify global audio settings such as volume and which speaker is used for output.
    • show notifications
      Allows the app to show notifications
    • android.permission.RAISED_THREAD_PRIORITY
    • android.permission.READ_APP_BADGE
    • read your contacts
      Allows the app to read data about your contacts stored on your phone. Apps will also have access to the accounts on your phone that have created contacts. This may include accounts created by apps you have installed. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
      (12L)
    • read image files from shared storage
      Allows the app to read image files from your shared storage.
    • read video files from shared storage
      Allows the app to read video files from your shared storage.
    • 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.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • request install packages
      Allows an application to request installation of packages.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (10)
    • com.anddoes.launcher.permission.UPDATE_COUNT
    • install shortcuts
      Allows an application to add Homescreen shortcuts without user intervention.
    • com.htc.launcher.permission.READ_SETTINGS
    • com.htc.launcher.permission.UPDATE_SHORTCUT
    • com.huawei.android.launcher.permission.CHANGE_BADGE
    • com.huawei.android.launcher.permission.READ_SETTINGS
    • com.huawei.android.launcher.permission.WRITE_SETTINGS
    • com.majeur.launcher.permission.UPDATE_BADGE
    • com.oppo.launcher.permission.READ_SETTINGS
    • com.oppo.launcher.permission.WRITE_SETTINGS
    • com.sec.android.provider.badge.permission.READ
    • com.sec.android.provider.badge.permission.WRITE
    • com.seyfal.whatsdown.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
    • com.sonyericsson.home.permission.BROADCAST_BADGE
    • com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
    • me.everything.badger.permission.BADGE_COUNT_READ
    • me.everything.badger.permission.BADGE_COUNT_WRITE

    Download APK 21 MiB PGP Signature | Build Log

  • Version 1.58.2 (300007201) - Added on May 14, 2025

    armeabi-v7a

    This version requires Android 5.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • android.permission.INSTALL_SHORTCUT
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • change your audio settings
      Allows the app to modify global audio settings such as volume and which speaker is used for output.
    • show notifications
      Allows the app to show notifications
    • android.permission.RAISED_THREAD_PRIORITY
    • android.permission.READ_APP_BADGE
    • read your contacts
      Allows the app to read data about your contacts stored on your phone. Apps will also have access to the accounts on your phone that have created contacts. This may include accounts created by apps you have installed. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
      (12L)
    • read image files from shared storage
      Allows the app to read image files from your shared storage.
    • read video files from shared storage
      Allows the app to read video files from your shared storage.
    • 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.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • request install packages
      Allows an application to request installation of packages.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (10)
    • com.anddoes.launcher.permission.UPDATE_COUNT
    • install shortcuts
      Allows an application to add Homescreen shortcuts without user intervention.
    • com.htc.launcher.permission.READ_SETTINGS
    • com.htc.launcher.permission.UPDATE_SHORTCUT
    • com.huawei.android.launcher.permission.CHANGE_BADGE
    • com.huawei.android.launcher.permission.READ_SETTINGS
    • com.huawei.android.launcher.permission.WRITE_SETTINGS
    • com.majeur.launcher.permission.UPDATE_BADGE
    • com.oppo.launcher.permission.READ_SETTINGS
    • com.oppo.launcher.permission.WRITE_SETTINGS
    • com.sec.android.provider.badge.permission.READ
    • com.sec.android.provider.badge.permission.WRITE
    • com.seyfal.whatsdown.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
    • com.sonyericsson.home.permission.BROADCAST_BADGE
    • com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
    • me.everything.badger.permission.BADGE_COUNT_READ
    • me.everything.badger.permission.BADGE_COUNT_WRITE

    Download APK 19 MiB PGP Signature | Build Log

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