Spaced Repetition Algorithms

NeuraCache offers two static algorithms and two adaptive algorithms at the moment. You can change between them any time, either for a single note or for a group of notes.


Static algorithms resurface your notes on a fixed schedule. The retention score does not have any effect on the next review date.

  • 1, 2, 3, 4, 5 days

  • 1, 5, 15, 30, 60 days


Adaptive algorithms resurface your notes based on the latest retention score.

  • Adaptive (SM2 based)

  • Adaptive Simple (exponential)

Which algorithm to select:

Although SM2 is the best default choice oriented for the results, it is worth experimenting with other algorithms to see how they work for you.

A typical situation is where you feel like there are too many reviews in Today's Queue. If this happens, try adjusting the algorithm to "Adaptive Simple" or "1, 5, 15, 30, 60" for some notes so that they come back for review much later in the future.

You can also use Today's Queue Limit feature.

See integrations: