If you need a tool to help you reconstruct the instructions for your childhood brick set, Bricksee is a great option. The app employs sophisticated machine learning technology to help you rebuild vintage brick sets with a single tool for brick identification and set reconstruction. With a catalog of more than 10,000 sets, you can also add your own sets and take photos of bricks in a layout to identify and reconstruct missing parts. It also shows detailed part information, including which sets it's in, and lets you add parts to unsaved sets, view in-app instructions, and track set progress.