Shellby: SSH Client & Terminal

Shellby is a modern, native SSH client for iPhone, iPad, and Mac — one app, one experience across all your Apple devices. It does more than connect: a built-in AI agent turns plain-language ops tasks into commands and asks for your approval before running each one, and Mosh-compatible transport keeps your session alive across network changes. Built for developers, sysadmins, and anyone who manages remote servers. No account, no tracking.

AI ASSISTANT & AGENT (BRING YOUR OWN KEY)

• Describe an ops task in plain language — the agent plans and runs commands step by step

• Every command passes an approval gate; destructive actions require explicit confirmation — nothing runs behind your back

• Customizable command allow/deny lists; approve & allowlist in one tap

• Connects via standard chat-completion APIs to the service you choose — e.g. DeepSeek, Kimi, GLM, Qwen, or a local Ollama model

• Off by default; you supply your own API key and endpoint — the app ships with no AI service built in

MOSH-COMPATIBLE CONNECTIONS

• Switch from Wi-Fi to cellular, roam between networks, ride through a tunnel — your session survives and resumes instantly

• Typing stays responsive even on slow, high-latency links

• Connection test detects a missing mosh-server and offers install instructions for your distro

TERMINAL

• Fast, standards-compliant terminal (xterm-256color)

• Password and SSH key authentication (Ed25519 / RSA / OpenSSH)

• On-screen key bar: Esc, Tab, Ctrl combos, arrows, common symbols

• Full hardware-keyboard mapping on iPad and Mac

• Terminal themes and adjustable font size

• Scrollback buffer up to 50,000 lines

SNIPPETS & COMMAND TOOLBAR

• Save the commands you use every day; run, insert, or copy them from a toolbar right above the terminal

• Shell syntax highlighting and line numbers; review a snippet before you run it

DESKTOP-CLASS ON MAC & iPAD

• Three-column layout: hosts, sessions, and content each in their place

• Multiple windows and session tabs; session cards with live terminal previews

• Split view — several sessions side by side

• Command broadcast — type once, send to many sessions

• Native menu bar, keyboard shortcuts, and window toolbar on Mac

FILES (SFTP)

• Browse, upload, download, rename, move, delete, create folders

• One transfer queue for uploads and downloads — progress, resume, and a choice of download destination

• Drag & drop on Mac; system notification when background transfers finish

• Integrates with the Files app

PORT FORWARDING & TUNNELS

• Local (-L), remote (-R), and dynamic SOCKS5 (-D) forwarding

• Jump hosts / ProxyJump (-J) with multi-hop chains

• Standalone tunnels that stay up and auto-reconnect, with live bandwidth

• For reaching services inside your own server network (databases, internal dashboards) — not for bypassing network restrictions

SERVER MONITOR

• Live CPU, memory, swap, disk, load average, and top processes

SYNC — YOUR DATA, YOUR STORAGE

• Optional iCloud sync of hosts, groups, and rules (CloudKit); passwords and keys travel only through the end-to-end-encrypted iCloud Keychain

• Or bring your own storage: sync hosts, keys, snippets, and AI settings & chats via any WebDAV or S3-compatible service you control

• Pair a new device by scanning a QR code — nothing to retype

SECURITY & PRIVACY

• Credentials stored only in the device Keychain — never in plaintext

• Host fingerprint verification (TOFU), with a strong warning if a fingerprint ever changes

• Face ID / Touch ID app lock

• No account, no tracking, no data collection

You bring your own SSH servers; Shellby connects only to machines you own or are authorized to access.

Languages: English, 简体中文, 繁體中文.

Privacy Policy: https://shellby.app.mahui.me/privacy/

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/