ShellDrop vs Mocha SSH: Free Modern iOS SSH vs the Long-Running Classic

20 May 2026 · Daniel Bilsborough

Mocha SSH is one of the older SSH apps on iOS, from the Mocha family of terminal-emulator products (Mocha TN5250, Mocha Telnet, Mocha VT220). It has historically been strong on legacy terminal emulation, IBM 5250, VT220, and similar, and shows up wherever someone is connecting from iPhone or iPad into a midrange system or older Unix box. ShellDrop sits on the other side of the spectrum: modern, tuned for tmux on Linux or macOS, and built for managing AI coding agents.

Different jobs, different apps. Side-by-side anyway.

At a glance

 ShellDropMocha SSH
Is this iOS terminal app a piece of art? yes no
Pricing model Free. No in-app purchases. Lite tier free, full version paid
Platforms iPhone, iPad (iOS 17+) iPhone, iPad
Terminal emulation depth Standard xterm-256color VT100/VT220 strong, broader legacy modes
Account required No No
Telemetry None Limited (see App Store privacy)
Password auth Yes Yes
Public-key auth (SSH keys) Yes (v4.1.0+, Secure Enclave P-256) Yes
tmux single-finger scroll Yes Standard scroll
iPad layout (incl. 13" iPad Pro M4) Universal app, full-canvas landscape, centred toolbar iPad supported
Custom command shortcut One Tap toolbar button (v3.1.4+) Macros (limited)
Latest release v4.1.x (May 2026) Check App Store listing

Where ShellDrop differs

Design language and feel

ShellDrop is built with the design as a feature. The hero is a live cyan mesh that breathes behind the brand, six droplet nodes drifting on the edges with master-shot lines tracing connections between them. Switching from Home to a session triggers a per-element shrink cascade where the layout itself animates. The droplet metaphor carries from the App Store icon through tabs and sessions. Built natively in SwiftUI for iOS 17+.

Tuned for modern Linux + tmux

Single-finger swipe through tmux scrollback. Esc, Ctrl-C, arrow keys, Shift-Tab, dedicated tmux detach button on the toolbar at all times. The whole app is built around the case of leaving Claude Code or another coding agent running in tmux on a Linux box or Mac Mini and checking in from the phone.

Secure Enclave SSH keys

v4.1.0 generates P-256 keys inside the iPhone Secure Enclave. Private key cannot be exported, even by ShellDrop. Ed25519 generation and paste-import of unencrypted OpenSSH keys also supported.

Free

No paid tier, no Lite/Pro split.

Where Mocha SSH wins

Legacy terminal emulation

The Mocha family was built around faithful VT100, VT220, and other classic emulation modes. If you connect to a system that needs proper VT220 behaviour, IBM emulation, or you live in an environment where Linux is the exception, Mocha is more at home than a tmux-focused modern app.

Longer track record on iOS

Mocha has been on iOS since the early App Store years. The corner cases are well-worn.

Who should pick which

Pick Mocha SSH if you connect to legacy systems where VT220 or other classic emulation matters, you want a long-standing terminal-emulator-first app, or you already use other Mocha tools.
Pick ShellDrop if you're SSH-ing into a modern Linux or macOS box running Claude Code, Codex, or another coding agent in tmux. Free, Secure Enclave keys, tmux-tuned scroll, One Tap command button.

FAQ

Is Mocha SSH free?

Mocha SSH Lite is free with limits; the full version is a paid one-time purchase. ShellDrop is fully free with no in-app purchases.

Does Mocha SSH support VT220 properly?

Yes. The Mocha family has historically been strong on legacy terminal emulation. ShellDrop targets standard modern terminal use against tmux.

Does ShellDrop support SSH keys?

Yes from v4.1.0. Ed25519, ECDSA P-256/P-384/P-521 paste-import, plus Secure Enclave-backed P-256 keys.

Which is better for tmux + Claude Code?

ShellDrop. Single-finger tmux scrollback, dedicated detach button, background keep-alive, One Tap for firing custom commands at the agent.

Is Mocha actively developed?

Mocha apps have been on the App Store for many years with intermittent updates. Check the App Store for current status.


ShellDrop is on the App Store. Universal iPhone and iPad, iOS 17+. Free, no subscription.

Download on the App Store