Chess Reps is the opening repertoire in your pocket:

Manage your openings:
- Easily and quickly add all your openings - on the board or via PGN import.
- Found an interesting variation you want to try? Add it to your opening and you won't forget about it.
- The Omniscient Knight helps you find gaps in your repertoire
- Sign in with Google to synchronize your repertoire across devices.
- Share openings with your friends using PGN/Json export!

Train your openings:
- Test your memory of the opening lines in training
- Monitor your progress with statistics and weekly progress reports


Other notable features:
- Analyze positions with Stockfish 11
- Find the most popular moves with an opening database
- Training modes: sort positions sequentially / by score / randomly; infinity mode
- Transpose from one opening to another seamlessly (or don't)
- Comment on individual positions