PandaSend vs Happy
Happy and PandaSend both let you steer a coding agent on your computer from your phone, end-to-end encrypted. They take different approaches. Happy is an app built around Claude Code and Codex. PandaSend puts the terminal itself on your phone, so it works with whatever you run. Facts about Happy come from its repository, as of October 2026.
| PandaSend | Happy | |
|---|---|---|
| Works with | Any terminal program: any coding agent, tests, builds, deploys, dev servers, shells | Claude Code and Codex |
| What you see | The live terminal, exactly as on your computer | A chat-style view of the agent session |
| Setup on the computer | Install the app (Mac, Windows beta) or run a one-line installer (Linux), then pair your phone with a QR code | Install with npm (Node required) and run happy instead of claude |
| On the phone | Any browser, or add it to your Home Screen | iOS and Android apps, plus a web app |
| Encryption | End to end (libsodium); the relay sees only ciphertext | End to end; the sync server handles encrypted data |
| Notifications | When any session waits for input | Permission requests and errors |
| Source | Closed source | Open source (MIT) |
| Price | Free on your network; remote $4.99/month after a 14-day trial | Free |
Agent app or terminal?
If all you do from your phone is talk to Claude Code or Codex, an agent app is pleasant: it can show approvals as buttons and the conversation as messages. Happy is a good free choice, with native phone apps.
Most work isn't only an agent, though. The agent runs the tests, the tests fail, and you want to see the output. The dev server needs a restart. The deploy script asks "(y/n)". A terminal tool covers all of it, plus agents Happy doesn't support, because it shows the real session instead of interpreting one program. PandaSend also tells you when any session is waiting for input, and its compose box makes long prompts easy to type on a phone.
Choose Happy if
- You only use Claude Code or Codex from your phone.
- You prefer a native app and a chat-style interface.
- You want free and open source.
Choose PandaSend if
- You also run builds, tests, deploys, servers or other agents, and want them all in one place.
- You'd rather not change how you start your tools (no wrapper command).
- You want the exact terminal: full-screen programs, scrollback, Ctrl-C.
Questions
Is Happy free?
Happy is open source under the MIT license, with free apps for iOS, Android and the web. PandaSend is free on your own network; remote access is $4.99 a month after a 14-day trial.
Does Happy work with tools other than Claude Code and Codex?
Happy is built for those two agents: you run happy instead of claude, and it shows the agent's conversation. For builds, deploy scripts, dev servers or other agents, a terminal tool like PandaSend shows whatever runs.
Are both end-to-end encrypted?
Yes. Happy encrypts between the command-line wrapper and the apps; PandaSend encrypts between your computer and your phone, and its relay only forwards ciphertext.