5 stars: Informative for those who want to improve at chess. Tactics etc all make a better player. Once you've done all the puzzles, you can start again, so when situations arise on board, you hardly have to think, automatically you move. I haven't done all puzzles and I've improved. Great stuff. Cheers Trevor.
4 stars: Not sure how accurate it is because I just play randomly avg to below avg player. If your looking for that next step to better your play. It looks like it's a easy and fast way to build your verbal knowledge and strategies in what it says OPENING.
3 stars: Interesting app but only shows the first few moves. After studying Batsfords Openings this app doesnt go into much depth at all but probably useful for beginners.
3 stars: I noticed it's not possible to analyze until game is open. So each time I want to check current position I have to open one of the games, make all the moves until the position I was looking at and then click analyze. Not practical at all. Analyze is very important to see why some opening moves make or make no sense. If this is fixed I will give it 5 stars.
5 stars: I have had this app for years and it has been amazing. I use this to study anything from main lines to just goofing off with the King's Gambit. And I have learned a lot from it.
3 stars: Mediocre app. There are far more better apps for learning chess. The quiz and the name of the openings is the only dignified feature.
5 stars: Excellent openings database...