If you are uncomfortable with the hourglass included in Rummikub.
1. Up to 6 people can play and the background color changes according to the order.
2. You can freely set the time limit.
3. You can pause and resume, and you can easily switch to the next order before reaching the time limit.
4. Depending on the setting, you can be notified by sound or vibration 5 seconds before the time limit.
5. The last game setting will be saved to your phone and loaded automatically the next time you run.