⚡ Spaced Repetition Algorithm Simulator ⚡
Comparing SM-2 vs FSRS on the Same Deck
🎮 Simulation Mode
Auto Mode (Random Grades)
Manual Mode (Grade Each)
⏱️ Time Controls
+1 Day
+10 Days
+100 Days
+1 Year
🔄 Reset
Current Day
0
SM-2 Retention
100%
FSRS Retention
100%
Total Reviews
0
Ready to simulate! Click time controls to advance the simulation.
📊 Retention Over Time
SM-2
FSRS
🎯 Score After N Days
Enter Days:
📈 Rate of Change (Derivative)
SM-2 Rate
FSRS Rate