Apps like Chess Openings

Here are some great alternatives to Chess Openings by Pondar :
Chess Opener PRO
Chess Opener PRO
★3.3
Chess Opening Lab (1400-2000)
Chess Opening Lab (1400-2000)
★4.3
Chess Prep Pro Openings
Chess Prep Pro Openings
★4.4
New in Chess Yearbook
New in Chess Yearbook
★4.6
ChessTastic™ Beta
ChessTastic™ Beta
★4.5
Mobialia Chess
Mobialia Chess
★4.3
Chess Openings Trainer Pro
Chess Openings Trainer Pro
★4.6
Chess Tactics in Open Games
Chess Tactics in Open Games
★4.5
Chess Middlegame II
Chess Middlegame II
★4.8
Chess Reps
Chess Reps
★4.6
Analyze your Chess
Analyze your Chess
★4.5
Analyze your Chess Pro
Analyze your Chess Pro
★4.7
Chess Studio
Chess Studio
★4.1
ChessBase Online
ChessBase Online
★4.0
OpeningTree - Chess Openings
OpeningTree - Chess Openings
★3.9
Forward Chess - Book Reader
Forward Chess - Book Reader
★4.5