a vs Runti

a-Shell is a complete local terminal emulator, allowing to run most Unix commands on your iOS device. You can transfer files using scp and curl, edit them with vim and ed, process them using grep, awk and sed. You can work with git repositories using lg2.  Most commands are compiled for iOS native Arm64 format, making them fast and well integrated with the BSD Unix that powers iOS/iPadOS. a-Shell includes Python, Lua, Perl, JavaScript, C, C++ for programming and TeX (texlive 2025, with Tikz and LuaTeX) for text processing. There are also multiple network utilities: nslookup, ping, whois, ifconfig... Type help for help, help -l to get the full list of commands. a-Shell can be controlled from Shortcuts: run commands in order, process files in a-Shell, get the results as text or files, transfer files to other apps... a-shell uses iOS 13+ “multiple windows” ability, so you can run multiple shells at the same time, with different commands, in different directories. You can edit a file in one window with vim and process it in the other with python. Compile your C or C++ programs to webAssembly using clang or clang++, and execute the resulting binary. A complete webAssembly SDK is included (WASI-libc). a-Shell is the complete version. If you need a smaller app, and you don't need a C compiler, a TeX engine, or numpy and matplotlib, there is a-Shell mini.

Runti is a daily skill game for developers, cybersecurity learners, and IT professionals. Test your knowledge, sharpen your instincts, and stay sharp across coding, networking, security, and more — all in fast, game-like sessions you can play anywhere. Choose your track. Answer real tech questions. Compete against yourself — and others. Whether you’re brushing up on cybersecurity fundamentals, practicing coding concepts, or exploring new IT domains, Runti turns learning into something you’ll actually come back to. Game Modes Lightning Mode Fast-paced, multi-track questions that test your instincts under pressure. Focused Tracks Dive into specific areas like: Cybersecurity Programming Systems & IT fundamentals (More coming.) Leaderboards & Points Climb global and track-specific rankings as you improve. Runti isn’t about memorization. It’s about thinking like someone in tech. Accuracy over speed Skill over streak abuse Progress without burnout No lectures. No walls of text. Just challenges that make you better. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/