Chess Middlegame I v1.0.0 Mod APK Unlocked  course composed by GM Alexander Kalinin is aimed at teaching a student much of the middlegame methods and intricacies through a theoretical section.
Typical Plans and Methods in the Most Popular Openings: Scotch, Ruy Lopez, Sicilian, Caro-Kann,... http://www.apkformod.com/chess-middlegame-i-v1-0-0-mod-apk-unlocked/