Prey - Prey is the simplest and most reliable solution for tracking, data protection & management for Windows, Mac, and mobile devices. Track with precise location, wipe, reset and secure devices across all platforms.
Brickit - Use ML to detect what can be built from your pile of legos
Android Lost - Remotely control your Android phone from the internet or by SMS. Features:
Lego Boost - Build + Code + Play
iLostFinder - iLostFinder is an anti-theft/lost app for iPhone and iPad.
Legoizer - Turn images into Lego murals.