0cloud and a-Shell
a-Shell is an open-source app with Unix commands rebuilt for iOS and WebAssembly. The 0cloud app runs a real Linux kernel on an emulated arm64 machine on the iPhone or iPad itself, compiled by WebKit’s JIT, with apt, coding agents and SSH, and the same encrypted workspaces as the browser.
$ uname -m
aarch64
$ sudo apt install -y build-essential
$ claude
0cloud and a-Shell, row by row
Their side is read from their App Store listings and public pages on 14 November 2026.
Topic0clouda-Shell
Linux on the device Real kernel and Debian on emulated 64-bit arm64 No Linux; commands rebuilt for iOS and WebAssembly
Packages apt, all of Debian A fixed set, plus your own WebAssembly builds
Coding agents on the device Claude Code, Codex, opencode, Antigravity Not supported
SSH to servers Yes, keys signed by the app ssh and scp
Python, TeX Python 3.13 with pip; TeX from apt Python and TeX built in
Price and source Free to use Free, open source
Where 0cloud is the better fit
When a tool you need is not on the list: any arm64 Linux program, apt and agents run in 0cloud.
- Any Debian package
- Coding agents on the device
- Same workspace in a browser
$ sudo apt install -y ffmpeg
$ pip install --user numpy
$ ssh staging
pick the tool for the job
a-Shell: free and open source
Where a-Shell is the better fit
When you want a light, open-source shell with Python and TeX ready, and no Linux.
- free and open source
- Shortcuts integration
Questions
Does a-Shell run Linux?
No. It runs commands built for iOS and WebAssembly. 0cloud runs a Linux machine.
Can I keep using Shortcuts?
Yes, both apps work with Files.