The best alternatives to Octi are Think with Google, Fynd, and Vlogoscope. If these 3 options don't work for you, we've listed a few more alternatives below.
Introducing you to Vlogoscope. An iPhone-based app lets you separate your camera screen and use Google Maps simultaneously. Our app works perfectly for vloggers who love to record videos and tell stories about sights, cities, routes, etc.
VoxelizeAR is a novel augmented reality app for iOS that lets you turn the real world into voxels (3D pixels). Paint on the screen to convert parts of the world into blocky, pixelated geometry.
S-ARKADE is the first spatial augmented reality platform for arcade gaming. Use a standard projector to create a game scenario on any surface, such as: walls, tables and floors in your room or even buildings facades, and play together!