Gomoku Quest - Online Renju is a free Android board game app developed by Mindwalk Corp. that allows users to play Gomoku (also known as Renju or Gobang) online with players from all over the world. The game is played by lots of beginners and very weak bots, making it a fun and easy way to learn the game.

One of the best features of Gomoku Quest is that you can watch live games being played, which is a great way to learn from more experienced players. Additionally, you can play with your friends, even if they are remote. The app also includes lots of VCF problems, and with the VCF Challenge, you can test and improve your VCF solving ability. Overall, Gomoku Quest - Online Renju is a great app for anyone who loves board games, and it's completely free to play.