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dev-mux vs mobile SSH clients

Q: What is the best iOS SSH client for AI coding agents?

For raw terminal access, Blink and Termius are the standards; Secure ShellFish adds superb Files/Shortcuts integration. For agent-native features — approvals, conversation UI, voice — Kittylitter is the standout free option. All connect to one machine at a time; for an always-on view of agents across many machines with push notifications, you want a control plane like dev-mux above them.

Q: Can I use these clients with dev-mux?

Yes — the hub is reachable over plain SSH on your tailnet, so any of these clients can attach to your sessions. dev-mux also ships its own iOS app with the fleet cockpit and push notifications.

Q: Do I still need a mobile SSH client if I use dev-mux?

Not necessarily — the dev-mux iOS app covers the fleet cockpit, agent cards, and push. Keep one around if you like a particular terminal's feel or need raw SSH to non-fleet machines.

“SSH into my box from my phone and check on the agent” has four good answers on iOS — Termius, Blink Shell, Secure ShellFish, and the newer, agent-native Kittylitter. All are worth knowing. All share one shape: a window from one device into one machine at a time. dev-mux is the layer those windows look into: an always-on plane that watches every machine whether or not any client is connected.

TL;DR — If you have one box and occasionally check on it from your phone, any client below does the job (Kittylitter best, if agents are why you're connecting). When you're running agents across several machines and want to be told when one needs you — rather than dialing in to look — you want a control plane with push, freshness, and a fleet map. That's dev-mux; and every client on this page can still SSH into it.

The four, briefly

Termius is the mainstream cross-platform SSH client (free Starter; Pro $10/mo; team tiers to $30/user/mo) with a cloud vault for hosts and keys, and AI limited to command autocomplete. Blink Shell is the iOS power-user's Mosh + SSH terminal ($19.99/yr) with optional cloud dev environments. Secure ShellFish is a beloved indie SSH/SFTP client with Files-app and Shortcuts integration ($2.99/mo or $29.99 lifetime), whose tmux-aware reconnect incidentally helps agent sessions. Kittylitter is the interesting one: free, open source, and genuinely agent-native — a native UI for agent conversations with approvals, turn-taking, parallel sessions, and voice, speaking to Codex, Claude Code, and friends over LAN, SSH, or P2P pairing.

At a glance

As of July 31, 2026. If something here is stale, tell us.

	dev-mux	Mobile SSH clients
What they are	Self-hosted fleet control plane	Phone/tablet terminals into one machine at a time
Always-on state	Hub watches everything; stale flagged in seconds	State exists only while you're connected
Who initiates	The hub tells you when an agent needs you (push)	You dial in to look
Fleet view	Every machine, repo, and agent in one map	A saved host list
Agent awareness	Hook-level signals, interrupt/steer, usage	Only Kittylitter (approvals, chat UI, voice); others none
Machine side	bash 3.2 + tmux + git spoke floor	Any SSH server (Kittylitter: agent process reachable)
Price	Solo $25/mo · Team $100/mo	$0 – $30/user/mo depending on client

Where the clients shine

Termius — polish and ubiquity: every platform, synced hosts, a team vault.
Blink — the best raw terminal on iOS; Mosh makes flaky-network sessions survivable.
Secure ShellFish — Files.app and Shortcuts integration nothing else matches.
Kittylitter — the one real agent client here: native conversation UI, approvals, parallel agents, voice — free and moving fast. Worth watching.

Where dev-mux is a different layer

Push vs pull. A client shows you what you connect to. The hub watches everything continuously and pushes attention signals — an agent waiting on approval reaches your pocket without you opening anything.
Fleet vs host list. Saved connections aren't a fleet map: no cross-machine status, no freshness semantics, no machine health, no usage dials.
The plane and the window compose. dev-mux ships its own iOS app, but any client on this page can SSH into your hub and attach to your sessions — Blink into the fleet works great.

Common questions

What is the best iOS SSH client for AI coding agents?

Raw terminal: Blink or Termius (ShellFish for Files/Shortcuts). Agent-native: Kittylitter, free. All are one-machine-at-a-time — for an always-on cross-machine view with push, you want a control plane like dev-mux above them.

Can I use these clients with dev-mux?

Yes — the hub speaks plain SSH on your tailnet, so any of them can attach to your sessions. dev-mux also ships its own iOS app with the fleet cockpit and push.

Do I still need a mobile SSH client if I use dev-mux?

Not necessarily — the dev-mux iOS app covers cockpit, agent cards, and push. Keep one if you like its feel or need raw SSH to non-fleet machines.

A client is a window. The fleet needs a watchtower.

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Written 2026-07-31 against each client's public site, pricing pages, and repos. Mobile SSH clients is a trademark of its owners; no affiliation or endorsement implied. Corrections welcome.