Nummi is a free-to-play game developed by 9 to 5 Software that is available for both Android and iOS devices. It is a turn-based game that is based on the classic Rummy game. You can challenge up to three friends to play with you whenever and wherever you want.

The game is easy to understand and play. You create your own profile with a personal avatar and add friends to invite them to play and chat with them during the game. The objective of the game is to be the first to empty your rack by creating sequences on the board. Sequences consist of a minimum of three tiles with ascending numbers and identical colors or tiles with different colors but equal numbers. To adjust your opponents' sequences, you need to collect 30 points with the tiles from your own rack and create correct sequences with them.

Nummi also features a ranking system that allows you to see your progress and compete against other players. You can personalize your game by choosing from 10 different board textures. Overall, Nummi is a fun and exciting game that is perfect for anyone who loves Rummy or board games in general.