White has only ONE move that doesn't lose and that's 25.Bd6 which according to Komodo would have left me with a 1-1/3 Pawn advantage after 25...Rb6 and 26.Qa8+
What I actually played looked more dangerous to black: 25.Rfe1 which rated "??" from Komodo. Still failing to realize the B had to be eliminated with 25...Nxc5 yielding near equality, the engine played 25...g5 which also rated "??" from Komodo.
After 26.Qa8+ (26.Bd6 was a little better) white's advantage was almost 4 Pawns and I won without difficulty and neither side was awarded any more question marks by Komodo.
Of course playing against me isn't a very good indication of how good the engine really is so I pitted it against Komodo 8 (using a single core) at 10 seconds a move and the result was a total disaster for the app. It may play considerably better with more thinking time, but at 10 seconds per move it's good for those moments when you want a quick game and actually have some chance of winning. If you don't like getting crushed by really strong engines then this app looks to be OK because it gives you a chance to win without it playing GM moves then tossing away a piece before switching back to GM mode!