GameSum is a lightweight mini game with simple math, instant feedback, and a clear goal. Enter an amount and a decimal ratio, play quick rounds, and push your score to the target with limited lives. Works fully offline and keeps everything on your device.


Instant rounds - results resolve in a split second with haptic feedback


Clear goal - reach the target score of 1000 before you run out of lives


Simple math - amount × ratio on hit, or lose the amount on miss


Streaks and pace - build streaks, manage risk, and try different ratios


Local history - every turn is logged with sport, amount, ratio, delta, score, lives


Dark theme - nearly black surfaces with crisp neon accents for readability


Fully offline - no sign-in, no ads, no background activity


How it works


Enter amount and ratio (decimal)


Select a sport context


Play rounds and watch score, lives, and streak


Review the history whenever you want


Privacy


Local data storage only


No tracking, no analytics, no personal accounts


Notes


For information and entertainment purposes


No real-money features or external services


Does not provide training plans, medical advice, or health tracking