Cathode is an advanced terminal app with visuals inspired by classic computers.
Use it to wirelessly connect to any machine that offers secure shell access.


- Fast and accurate emulation
- Live text resizing and reflowing
- 256 Colors
- Unicode (single width glyphs)
- Perfect score on test suites

- Large collection of retro bitmap fonts
- Zoom text from small/crisp to large/blocky.
- More than a dozen sliders for customizing shape, colour, lighting, and distress.
- Takes full advantage of retina displays
- Fluid animations respond to your gestures and movements
- Low power modes for using less CPU and battery

- Support for bluetooth keyboards, including special keys
- On-screen keyboard can be customized with favorite characters
- Keyboard can be hidden for a fullscreen experience
- Works comfortably in both portrait and landscape modes

- Connects over cellular or Wifi
- Handles multiple concurrent sessions
- Preserves connections and reconnects when needed
- Automatically detects nearby computers using Bonjour
- Save bookmarks for frequently used servers.
- SSH key management.

What’s New

Version 3.4.0

- Fully 64-bit
- Multitasking support
- iPad Pro support

Ratings and Reviews

3.3 out of 5
16 Ratings

16 Ratings

DaryxFox ,

Almost there.

This is a great app, but as a user if the Mac version of Cathode, I find that it's missing some features. Mainly: bell sounds (seriously, not even a modern beep?), speed / baud rate control, and font size selection are the features I'd from the Mac version I'd like to see implemented here. In addition, I've noticed some problems when the screen is rotated; it doesn't seem to be allowing "full screen" programs to discover the terminal size has changed (I tested it with TinyFugue, and vim). One more thing: it's annoying to have tap twice to hide the keyboard.

Zerohana ,

Best pocket SSH client I’ve ever used.

I was a little worried when I saw the low reviews on the App Store page, but also considered that it had a small pool to draw from. That probably skewed the results, so I decided to give it a try. I haven’t experienced the grievances of dropped connection mentioned by other reviewers, and it works on cellular connection for me (using a iPhone 7 A1660 —>Qualcomm modem, in case that factors in—I know there are different models of the iPhone 7 with different radio chips).

Anyway, aside from the technology working without issue for me, this app is easily the best looking out there, and doesn’t spy—*cough*—collect user data behind your back (Prompt 2, get your act together. An ssh client should not send any unsolicited traffic over the network. You lose all trust the moment you do that—especially for a premium $15 app like yours. Disappointing).

I’m so glad I came across this app for testing my remote server, it speaks to my inner geek and actually made some of my work fun. If you need a pocket SSH client, this is the one.

Frank Jonen ,

Drops connections too quicky

The best looking client but the most finicky one. One moment you’re editing away in nano and out of the blue Cathode cuts the connection. Other clients I tested didn’t have that issue.


Secret Geometry, Inc.
7 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like