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Mobile Harness

AI coding, Linux terminal, files, diffs, and previews on Android
New in version 1.0.2
Expose literal release versions for reliable F-Droid update detection.
Mobile Harness is a local-first AI development workspace built for ARM64 Android phones.

Create persistent projects or start a Quick Project, chat with a coding agent, inspect files, run Linux commands, review changes, and preview local web apps—without installing Termux or rooting your phone.

Features:
• Persistent projects and friendly, instantly created Quick Projects
• Streaming AI chat with visible tool activity and multiple sessions
• Project-scoped and global Linux terminals
• Collapsible file browser with locally stored attachments
• File diffs, task checkpoints, and rollback controls
• Browser-style preview for local web servers
• Guided Ubuntu 20.04 ARM64 runtime setup with live progress
• Anthropic API and experimental Anthropic-compatible gateways
• API-key encryption backed by Android Keystore

Important: Mobile Harness is experimental alpha software. PRoot is not a hardened security sandbox. Open only projects and dependencies you trust. Provider capabilities vary, and some models may not support every Claude Code tool or streaming event.
  • app screenshot
  • app screenshot

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 1.0.2 (3) suggested Added on Sep 29, 2026

    arm64-v8a

    This version requires Android 9.0 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.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • 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.
    • show notifications
      Allows the app to show notifications
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.jarves.mh.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 42 MiB PGP Signature | Build Log

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