How Card Frequency Works (Spaced Repetition)
Memorize In A Flash uses a simple spaced repetition system (SRS) to help you review cards efficiently. Instead of showing every card every time, it schedules them based on how well you know them, determined by your "Know" () and "Don't Know" () clicks during study sessions.
Frequency Levels:
Cards progress through these levels based on your performance:
Always
→ Daily
→ Weekly
→ Monthly
→ Quarterly
→ Annually
- Available: New! This is a special status for cards you have added but do not want to study yet. Cards set to 'Available' will **not** appear during study sessions. You must manually change their frequency (e.g., to 'Always' using the Edit Card or Bulk Update features) to include them in your studies.
- Always: Cards you are currently learning or struggling with. Cards at this level appear in every study session until promoted. This is the default starting frequency for new cards.
- Daily: Cards will appear for review roughly 1 day after the last time you reviewed them.
- Weekly: Reviewed roughly 1 week after the last review.
- Monthly: Reviewed roughly 1 month after the last review.
- Quarterly: Reviewed roughly 3 months after the last review.
- Annually: Cards you know very well. Reviewed roughly 1 year after the last review.
Promotion & Demotion Rules (Score Difference):
This system applies only to cards with frequencies other than 'Available'.
After each time you click " Know" or " Don't Know" for a card, the system calculates a simple score: Total 'Know' Clicks - Total 'Don't Know' Clicks
for that card at its current frequency level.
- Promotion (Score >= 3): If the score difference reaches 3 or more, the card moves up to the next frequency level (e.g., Daily to Weekly). Its correct/incorrect counts are reset to 0, starting the score over for the new level. A card cannot go higher than
Annually
(but counts will still reset if the score reaches 3 at the Annual level).
- Retention (Score between -2 and +2): If the score difference is between -2 and +2 (inclusive), the card stays at its current frequency level. The counts are *not* reset, and the score continues to accumulate at this level.
- Demotion (Score <= -3): If the score difference drops to -3 or lower, the card moves back down to the previous frequency level (e.g., Weekly to Daily). Its counts are reset to 0. A card cannot go lower than
Always
(but counts will still reset if the score reaches -3 at the Always level).
This system ensures cards you consistently get right appear less often, while cards you struggle with appear more frequently until you master them.
Manual Changes:
- You can manually change a card's frequency when adding it ( Add Card tab), editing it ( Edit Card tab), or using the Bulk Update tool (requires login).
- Setting a card's frequency to 'Available' removes it from study sessions until you change it back to an active frequency (like 'Always').
- Manually changing the frequency (using the dropdowns or the Bulk Update tool - requires login) will **reset the correct/incorrect counts to 0** for the affected card(s). This essentially restarts the scoring process for that card at its new, manually assigned level.