Very useful app

Great app: easy to use, always improving with each update. Good database of openings. The chess engine for playing games after the opening is not particularly strong, but this is an openings app, and it helps me practice openings better than anything else Ive got (certainly than anything else on the iPad). For actually playing chess, there are other apps that are stronger, but theyre awkward to use to practice openings.

Randal Quarles about Chess Opener, v4.3