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Holos

Holos: Mobile-first Fediverse client with your own ActivityPub identity
Holos is a mobile-first Fediverse client that gives you your own ActivityPub identity directly on your phone. Unlike traditional Mastodon apps that require an account on a server, Holos runs a full ActivityPub server on your device.

Key Features:

- Your Own ActivityPub Server
- Full ActivityPub server running on your phone
- Your data stored locally on your device
- Relay server provides a stable address for federation

- Full Fediverse Compatibility
- Follow and interact with users on Mastodon, Pleroma, Misskey, Pixelfed, and more
- Full ActivityPub support: posts, likes, boosts, replies, quotes, and mentions
- Direct messages with real-time delivery

- Flexible Timeline Views
- Switch between All, Media only, Videos only, or Text only
- Quickly adapt your feed to your current mood
- Filter content the way you want

- Mobile-First Design
- Built from the ground up for mobile
- Works offline with automatic sync when reconnected
- Battery-efficient with smart background sync

- Privacy Focused
- Your posts and messages stored locally in SQLite
- All traffic proxied through relay for IP privacy
- RSA keys generated on-device, private key never leaves your phone

- Real-Time Sync
- WebSocket connection for instant notifications
- Activity queue with priority-based delivery
- Automatic catch-up after offline periods
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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 1.8.1 (39) suggested Added on Jun 09, 2026

    arm64-v8a armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, 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.
    • 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"
    • 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.READ_APP_BADGE
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • read audio files from shared storage
      Allows the app to read audio files from your shared storage.
    • 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.
    • read user selected image and video files from shared storage
      Allows the app to read image and video files that you select 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.
    • This app can appear on top of other apps
      This app can appear on top of other apps or other parts of the screen. This may interfere with normal app usage and change the way that other apps appear.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • 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.
    • com.anddoes.launcher.permission.UPDATE_COUNT
    • 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.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
    • social.holos.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 77 MiB PGP Signature | Build Log

  • Version 1.8.0 (38) - Added on Jun 04, 2026

    arm64-v8a armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, 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.
    • 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"
    • 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.READ_APP_BADGE
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • read audio files from shared storage
      Allows the app to read audio files from your shared storage.
    • 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.
    • read user selected image and video files from shared storage
      Allows the app to read image and video files that you select 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.
    • This app can appear on top of other apps
      This app can appear on top of other apps or other parts of the screen. This may interfere with normal app usage and change the way that other apps appear.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • 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.
    • com.anddoes.launcher.permission.UPDATE_COUNT
    • 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.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
    • social.holos.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 77 MiB PGP Signature | Build Log

  • Version 1.7.0 (37) - Added on Jun 03, 2026

    arm64-v8a armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, 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.
    • 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"
    • 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.READ_APP_BADGE
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • read audio files from shared storage
      Allows the app to read audio files from your shared storage.
    • 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.
    • read user selected image and video files from shared storage
      Allows the app to read image and video files that you select 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.
    • This app can appear on top of other apps
      This app can appear on top of other apps or other parts of the screen. This may interfere with normal app usage and change the way that other apps appear.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • 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.
    • com.anddoes.launcher.permission.UPDATE_COUNT
    • 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.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
    • social.holos.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 77 MiB PGP Signature | Build Log

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