Altmove helps you learn chess better via in-game coaching (identifies mistakes as you make them) and the ability to pursue an alternate, better move (hence the name). This is far more effective than the post-game analysis all other tools do. Post-game is too late to grasp and internalize the context of the moment which leads to mistakes. You can also import your games from chess-com and lichess to analyze and replay with Altmove to see what you could have done differently.