SigilTTY — SSH & Terminal
Your servers. One native terminal.
Native SSH for Mac, iPhone and iPad — with SFTP, secure tunnels, Keychain-backed credentials, and serial access on Mac.
- Native for Apple platforms
- Powered by Ghostty
- Keychain-backed credentials
Built for the whole job
Terminals, files, tunnels and keys — every part of remote work, in one native app.
All your servers, one place
Save connection profiles, organize them in nested folders, and jump back into recent sessions. Quick Connect takes a plain user@host when you just need to get in, and snippets keep the commands you repeat one tap away.
A fast, native terminal
The terminal is GPU-rendered by Ghostty and wrapped in a real Apple-native interface. Multiple tabs, crisp text under heavy output, and a UI that feels at home on every Apple screen.
Make it yours
Choose from 485 Ghostty color themes and let your pick flow into the sidebar, toolbar and tab bar. Pick your terminal font — including dedicated CJK font selection — and enjoy a glass background on Mac.
Your keys stay yours
Credentials live in Keychain, never in plain text. Protect private keys with Touch ID or Face ID — protected keys stay on this device by design, and every forwarded agent signature is approved locally before it happens.
From cloud servers to the devices on your desk
SSH covers your servers, with jump-host chains to reach private networks. Telnet (unencrypted) covers legacy gear. And on Mac, a serial console covers routers, dev boards and USB consoles — Mac only.
Files without leaving your flow
Browse remote files, upload, download, rename and manage directories over SFTP — no shell required. File transfers run in their own SFTP session, separate from your terminal.
Remote services, safely on localhost
Forward local and remote ports in a dedicated tunnel session — no terminal attached, each rule with its own status. A dev server on your remote box shows up at localhost in the browser of your choice.
One workspace, every Apple device
The serial console is Mac only. Everything else travels with you.
| Capability | Mac | iPhone | iPad |
|---|---|---|---|
| SSH & Telnet | Supported | Supported | Supported |
| SFTP file browser | Supported | Supported | Supported |
| Local & remote port forwarding | Supported | Supported | Supported |
| Profiles, folders, snippets & iCloud sync | Supported | Supported | Supported |
| Keychain, biometric key protection & Key Handoff | Supported | Supported | Supported |
| Serial console | Supported | Not available | Not available |
Serial console requires a Mac with a USB serial device.
Frequently asked questions
What are the system requirements?
SigilTTY requires macOS 14 or later on Mac, and iOS 17 / iPadOS 17 or later on iPhone and iPad.
How much does it cost?
Pricing will be announced when SigilTTY launches on the App Store.
What syncs between my devices?
Server profiles, folders and snippets sync via CloudKit. Passwords and regular private keys can optionally sync through iCloud Keychain. Biometric-protected private keys deliberately stay on the device they were created on — move them to another device with Key Handoff, an encrypted local-network transfer.
Is Telnet secure?
No — Telnet is an unencrypted protocol and sends everything, including credentials, in plain text. Use it only for legacy devices on networks you trust; use SSH everywhere else.
Can I use a serial console on iPhone or iPad?
No. The serial console is Mac only — it connects to USB serial devices, which iPhone and iPad do not support in SigilTTY.
Be there when it launches.
SigilTTY is coming to the App Store for Mac, iPhone and iPad.