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