For anyone who liked Advance Wars, this is the spiritual successor to that series. Enthralling strategy, well balanced, and no "pay to win" or to progress. Ive been playing single player and enjoying it greatly.
Some people complain about ads, but there are none in single player. From what I gather, they only happen if you go over your limit for simultaneous multiplayer games, and you can pay to increase that limit. Its a very fair business model compared to most mobile games. The developers have to make money somehow, and this method has no impact on the actual game mechanics, keeping it fair for players.
Tooloohoohoo about UniWar: Multiplayer Strategy, v1.9.24