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SuperDuper Terminal

An SSH client for iPhone, with tmux sessions and keys that stay on the device.

Connect to your servers from your phone: check a long-running job, restart a service, answer a prompt from an agent that is still working. Sessions run under tmux, so losing signal or closing the app does not kill what you were doing.

Need help or found a bug?

Email info@superduperai.co — mention your iOS version and what you were doing. Bug reports are read by a human.

Getting started

  1. Tap + and enter the host, port, username and how you want to authenticate.
  2. For key authentication, generate a key in SSH Keys first, then copy the public key to your server's ~/.ssh/authorized_keys.
  3. Tap the server to connect. The keyboard row at the bottom has Esc, Ctrl, Tab and arrows — the keys iOS does not give you.

Frequently asked

Where are my private keys kept?

Generated on the iPhone and stored in the Keychain, protected by Face ID or your passcode. They are never uploaded and never synced to us — the app has no backend of its own and no account.

What happens when the connection drops?

Each session runs inside tmux on your server, so the work carries on without you. Reopen the app and it reattaches to the same session.

The server does not have tmux.

The app tries to install it once, without prompting for a password. If that is not possible — no sudo rights, no package manager it knows — it says so and gives you a plain shell instead.

Can I forward a port?

Yes, per server, under the server's settings.

Does it collect any data?

No. See the privacy policy.