Association for Psychological Science · reviewed 2026-10-10
What this source supports: Spaced repetition schedules review existing items in priority over new items for long-term retention.
Source limit: Optimal new-card count varies by material difficulty and individual. Start conservatively.
These sources support the statements above. They do not show that every person needs this guide. They do not show a specific result.
Limits
This guide counts minutes from your own timings. It does not measure memory or judge card quality.
Optimal new-card count varies by material difficulty and individual. Start conservatively.
Use current instructions from the responsible organization. This guide is a planning aid, not an official decision or a substitute for qualified advice.
Common questions
What does the App compute?
Turn a daily review-minute cap into the largest number of new cards you can add without passing it.
What does the App not do?
This App counts minutes from the numbers you enter. It does not schedule your cards, test your memory, or judge card quality.
Where do the numbers come from?
You enter every number yourself. The sources support the method and the limits. They do not produce a result for your specific case. Keep the original documents next to the sheet you build.
Before you start
Open the linked source page and keep it beside you.
Gather the values the App asks for:
Review minutes you allow each day.
Seconds per review.
Reviews each card returns.
Set aside ten quiet minutes; rushed numbers are the main error this guide prevents.
Free Companion App
The App computes the worked example with your own numbers, in your browser.
APP 1
Daily New Card Intake Cap
Turn a daily review-minute cap into the largest number of new cards you can add without passing it.
This guide is edited for clarity and checked against the sources it links. It is not a substitute for official instructions or qualified advice. A linked source does not show that every person needs this guide.