a vs MultiSet

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.

Scan a space with your iPhone and MultiSet builds a 3D map of it. Point your camera at that space later, from any angle, and the app works out exactly where you are standing, down to a few centimeters. That is visual positioning. This app is the field tool for it. SCAN AND BUILD MAPS Capture a room, a floor, or a whole building with LiDAR. Large sites are mapped across several sessions and merged into one coordinate system, so a warehouse does not have to be scanned in one go. Scans upload in the background and save as drafts if you lose signal. TEST ON SITE Open any map and localize against it then and there. You see the pose, the confidence, and the response time, with the reconstructed mesh drawn over the real room so you can tell at a glance whether it lines up. TRACK OBJECTS Upload a 3D model and the app recognizes that object in the camera feed and traces its outline in place. PLACE CONTENT IN A REAL SPACE Pin 3D text, images, and location markers to a mapped space, set the points people should be guided to, and publish it. Visitors open it by scanning a QR code. No install, no account, no App Store. GEOREFERENCE Capture control points and tie a map to real world coordinates. INSPECT MESHES Open the reconstructed mesh of any map or object in a 3D viewer. Orbit, zoom, switch shading, check triangle counts. BUILT FOR DEVELOPERS Everything here runs on the same visual positioning system behind the MultiSet SDKs for Unity, iOS, Android, Quest, and WebXR. Maps you build in this app work in your own builds. Requires a MultiSet account, free to create at developer.multiset.ai. Scanning needs an iPhone or iPad with LiDAR. Localization, object tracking, and published experiences run on any device that supports ARKit.