Did you know that chimps seem to have better visuospatial memory than us humans? Well, it doesn't always have to be that way. By using this simple app, you can train areas in your brain that are responsible for this specific type of memory. With a few weeks of practice, you will be surprised how good you can get. In fact, then, if you challenge your friends, they will likely think you are a genius. And you will be, sort of, because not many people have photographic, also known as eidetic, memory.

Using this app is simple. You just have to memorize the positions of all the numbers, and press their buttons in the right order, which is 1, 2, 3, ... ,9. If you make even one mistake, it's game over. Have fun!