Memory Trainer 2.2

the author of this app says:

Begin training your spatial and working memory! Improve focus and concentration!

It has been recently scientifically proven that regular mental exercise can
greatly improve your memory. This app has been designed to do just that! In
particular, Memory Trainer works out your spatial and working memory, focus, chunking and concentration skills.

Included: Graphical progress.

Update: Targeted training.