Support Article
What is FSRS Retention and which setting should I use?
What FSRS Retention means
If your deck uses the "FSRS" review mode, the "FSRS Retention" setting controls how aggressively AlgoApp tries to keep material fresh in memory.
Higher retention means:
- more frequent reviews
- shorter intervals
- lower chance of forgetting
Lower retention means:
- fewer reviews
- longer intervals
- lighter workload
Available options
- "Light (85% retention)": longer intervals and fewer reviews. Best for casual study or lower-priority material.
- "Balanced (90% retention)": the standard recommended setting for most decks.
- "Intensive (95% retention)": more reviews and shorter intervals. Best for high-stakes material.
How to change it
- Open the deck.
- Open the deck's settings.
- Find "FSRS Retention".
- Choose the option you want.
Recommendation
Start with "Balanced (90% retention)" unless you already know you want a lighter or more intensive study workload.