Show HN: ChessKeep – browse grandmaster chess games (chesskeep.app)

I haven't been able to find any good iOS apps for exploring grandmaster chess games. I used to use Lichess but their feature for browsing master games on iOS is broken for me.

I made ChessKeep so I could filter by master and opening, and it's a PWA so it can be installed to your home screen. Please share any feedback!