MightyMouse vs Happy Coder
Both let you keep going from your phone. One is scoped to the agent, the other to the machine.
Happy Coder is a free, open-source (MIT) mobile and web client for Claude Code and Codex. You run happy instead of claude on your computer, and the session becomes controllable from an iOS, Android or web app, end-to-end encrypted, with push notifications when the agent needs permission.
MightyMouse is not agent-specific. It serves your actual Mac screen to the phone with a trackpad, a keyboard and a microphone, so the coding agent is one of the things you can reach - along with every other app on the machine.
Side by side
| MightyMouse | Happy Coder | |
|---|---|---|
| Control a Claude Code / Codex session | Yes, through the terminal on screen | Yes, purpose-built for it |
| See your whole Mac screen | Yes | No - the agent session |
| Move the Mac cursor | Yes, a real trackpad | No |
| Use any other Mac app | Yes | No |
| Push notification when the agent needs you | Yes | Yes |
| Dictate into any Mac app | Yes, local Whisper | Voice in the app |
| Runs on Ray-Ban Display glasses | Yes | No |
| Open source | No | Yes, MIT |
| Price | Free with your own AI account, or use the built in option. No card needed. | Free and open source |
| Platforms | macOS, with an iPhone and glasses remote | iOS, Android, web |
Happy Coder details checked 15 August 2026 from happy.engineering, github.com/slopus/happy. Prices change - check theirs before deciding.
Where Happy Coder is the better pick
If the only thing you want from your phone is your coding agent, Happy is built for exactly that and MightyMouse is not. It is free, open source, end-to-end encrypted, and it sends you a push notification the moment the agent stops and needs an answer - which is the feature you actually miss when you walk away from a long run. MightyMouse has nothing like that.
It also works from Android and from a browser. MightyMouse needs a Mac at the other end and is aimed at an iPhone or Ray-Ban Display at yours.
Where MightyMouse is the better pick
Pick MightyMouse when the agent is not the whole job. Real work strays outside the terminal constantly: a browser tab to check, a file to drag, a dialog that appeared, a Slack reply to dictate. Happy cannot reach any of that by design, because it is a client for a coding session rather than for the computer.
The second difference is that you see the machine. Your live screen, and a cursor you move yourself, means you can read whatever is actually on it rather than what an agent chose to report. And the same control surface opens on Meta Ray-Ban Display, so it can be in front of your eyes with nothing in your hands.
They overlap less than the category suggests
Both get filed under "run Claude Code from your phone," but they solve different halves of it. Happy makes the agent conversation portable and tells you when it needs you. MightyMouse makes the whole Mac portable and leaves the noticing to you.
If you are weighing the broader question of steering a machine remotely, the other end of the spectrum is Anthropic's own Dispatch, where an agent does the clicking instead of either you or a terminal session.
The whole Mac, not just the agent.
macOS, Apple Silicon and Intel. No card to try it.
Common questions
Do I need an AI subscription?
No. Connect a Claude, Codex, Gemini or OpenCode account you already pay for and MightyMouse costs nothing. Have none? Sign up and use the built in option, no card needed. Voice transcription is free either way because it runs on your Mac.
Can I use both?
Yes, and it is a sensible pairing. Happy for the push notification when your agent needs an answer, MightyMouse when you want to look at the actual screen or use anything else on the Mac.
Does MightyMouse notify me when my agent needs input?
Yes. Your agent pushes to your phone the moment it needs an answer, and you can answer right from the notification. Happy does this too. The difference is what happens next: MightyMouse also hands you the live screen, so you can take over the whole Mac instead of only replying.
If your work leaves the terminal: MightyMouse puts the whole Mac on your iPhone as a screen, trackpad and mic, with free local transcription.