This Free Android App Lets Claude Code Use Your Phone

Meanwhile, an open-source Android app called Buddy can run Claude Code, Codex, or OpenCode directly on a smartphone and let the AI interact with other apps by reading the screen, tapping buttons, typing, and scrolling.

Key points

• Buddy 2.1 is published under the Apache 2.0 license and is available free through GitHub Releases.
• Users can therefore employ an existing Claude Pro or Max subscription with Claude Code or a ChatGPT plan with Codex, rather than paying separately for API usage.
• According to the developer, Buddy itself was largely built in this way using Claude Code running on a OnePlus 12.
• Buddy 2.1: an open-source Android app that lets Claude Code employ your phone, on your own subscription.
• While Hard makes Buddy itself detect actions such as Send, Pay, and Delete and require user confirmation, trust leaves approval decisions largely to the agent.

Buddy 2.1 works through a floating chat bubble and does not require a PC, root access, ADB, or an API key. According to the project's GitHub documentation, everything runs locally inside the Android app apart from requests sent to the selected AI provider. Microsoft CEO Notes AI Models Need an Emergency Brake. Free and Open Source.

Buddy 2.1 is published under the Apache 2.0 license and is available free through GitHub Releases. There are no paid Buddy tiers or dedicated Buddy servers.

For context, the app is at present considered early-stage software and has primarily been tested on a OnePlus 12 running Android 16, meaning compatibility and battery-management behavior may differ on other Android devices. It is additionally not affiliated with Anthropic or OpenAI. Claude Code Runs Directly on the Phone.

Buddy creates a small Alpine Linux environment using proot inside its own app storage.

Claude Code, Codex, or OpenCode can then be installed into that environment and run directly on the smartphone.

OpenCode is additionally backed and can work with free models without requiring an account. The app requires a 64-bit phone running Android 11 or newer.

Buddy 2.1: an open-source Android app that lets Claude Code employ your phone, on your own subscription. I built it with Claude Code, on the phone itself byu/3amae404 inClaudeAI. AI Can Tap, Type and Scroll Through Apps.

Buddy uses Android's accessibility system to expose a set of phone-control tools through a local MCP server. The AI agent calls these tools when completing a request.

Notably, a user could, for example, ask Buddy to open an app, search for something, fill in information, or navigate through a number of screens. Sensitive Actions Require Approval.

Buddy includes an approval system for actions that could have real consequences.

Meanwhile, the app can require confirmation before an agent sends a message, posts content, buys something, deletes data, or changes settings. Version 2.1 additionally introduces per-app safety levels.

For context, a Smart mode can employ a separate Claude Code or Codex session to review taps against the user's original request and current screen.

Importantly, Buddy notes agents cannot interact with the app's own approval cards or settings, preventing them from approving their own actions. Buddy 2.1 No Longer Needs Termux.

One of the biggest changes since version 1.0 is that Termux is no longer required.

Users can now install and sign in to Claude Code, Codex, or OpenCode directly through Buddy.

Meanwhile, the built-in Linux environment and required agent software are handled from inside the application.

Buddy can additionally accept new instructions while a task is running. The agent picks them up during its next step instead of restarting the entire task. Voice Control and Spoken Responses.

Buddy supports voice input using the phone's speech recognizer, Claude Code's dictation capability, or ChatGPT voice through Codex.

Responses can additionally be read aloud using either the phone's text-to-speech system or backed ChatGPT voices.

Notably, the floating bubble remains available over other apps, allowing users to matter commands without constantly switching back to Buddy. Builds Apps on the Phone. Buddy includes an optional developer mode.

When enabled, Claude Code, Codex, or OpenCode can create and modify files inside the app's Linux environment.

Notably, the project includes tooling that lets the agent write Java code, compile it, sign an APK, and open Android's installer – all directly on the phone.

Meanwhile, the AI reportedly wrote Java code, built and signed the APK, installed test builds, and afterwards employed Buddy's own MCP phone controls to test the application. OpenAI Is Turning ChatGPT Into a More Interactive Interface. Remote Claude Code Sessions Backed.

Buddy can maintain a Claude Code Remote Control session inside the app.

That session can appear inside the Claude app as "Buddy" and still retain access to the phone-control tools.

Meanwhile, the app additionally includes a full terminal for accessing its built-in Linux environment. Giving an AI accessibility access creates significant security risks.

Buddy's own documentation identifies prompt injection as the main concern since the agent reads text displayed by other apps.

Notably, a malicious website, message, or email could potentially contain instructions intended to manipulate the AI.

Buddy attempts to reduce this risk through system instructions, approval prompts, per-app restrictions, and separate reviewer models, but the developer explicitly warns that no model is perfect.

Users are additionally advised not to let Buddy enter passwords, one-time authentication codes, or payment information. Stay Connected with ProPakistani.

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