Great chess aid with a notable flaw
Enjoy all the training and options, however it’s terrible to use on an iPhone. The screen display (4.7”) is too small to consistently identify pieces on the board without spreading fingers. Then you lose the board positioning. The zoom/shrink/fight the rotation takes all the joy out of using the app. Not expensive, but the limited use makes me wish I had gone for the “lite” version. Not going to get an IPad just to use this app.