a-Shell

a-Shell is a terminal emulator app that brings a local Unix command line to your iPhone or iPad. Run familiar tools, move files with scp or curl, edit in vim or ed, and reshape text with grep, awk, or sed. Compiled for Arm64 and aligned with the BSD core of iOS, this mobile shell feels fast and at home on your device, making everyday command line work practical on the go.

Command line essentials and system tools

Use this Unix shell app to work with git through lg2, check networks with ping or nslookup, or review domains with whois. File workflows move cleanly between apps, and scripting scales from quick one liners to longer jobs. a-Shell links with Shortcuts so you can chain commands, pass files, and return results as text or documents. When tasks grow, open multiple windows to run parallel shells in distinct directories and keep edits and executions side by side.

Languages, TeX, and WebAssembly

Built in runtimes let you script in Python, Lua, Perl, or JavaScript, while C or C plus plus compilers handle native builds. You can compile to WebAssembly with clang or clang plus plus and run results with a complete WASI libc toolkit. This developer environment also includes TeX Live 2025 with TikZ and LuaTeX for high quality typesetting, plus popular scientific libraries like numpy and matplotlib. On iOS 13 or later you can edit in one window and execute in another for a tight, efficient loop.

Who it is for and why it matters

This iOS terminal app suits developers, educators, administrators, or anyone who wants a portable command line for quick fixes, learning, or offline work. If storage is tight or you do not need a compiler or TeX or scientific stacks, consider the lighter mini edition. Download the a-Shell APK to turn your phone or tablet into a capable Unix workstation on the go.