Master IGCSE Science with spaced repetition
Cards are shown at increasing intervals based on how well you know them. The better you rate a card, the longer before you see it again — so you spend more time on what you find hard and less on what you already know.
Tap a card to reveal the answer, then rate how well you knew it from 1–4:
Your rating decides when you’ll next see the card. Rating Good or Easy pushes the card further into the future; rating Again or Hard brings it back quickly.
This app uses the SM-2 algorithm. Each card tracks an interval (days until next review) and an easiness factor that adapts to you.
Example with consistent Good ratings: 1d → 6d → 15d → 38d → 95d. Easy makes intervals grow faster; Hard slows them down.
● Unseen – Not yet studied
● Learning – Review interval under 21 days
● Mastered – Review interval 21+ days
Each day you’ll see cards due for review plus a batch of new cards (default 5 per deck, adjustable in Settings). Once all due cards are done, you can optionally study 5 more.