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Learning Step and Review Interval Retention

<10kB. Updated 2020-09-27. Only supports Anki 2.1.x.
The author has shared 2 other item(s).


This add-on adds statistics showing the percentage of correct answers for each learning step and review interval. Those can be used to tune learning steps and interval modifier. Retention is shown separately for learning, relearning and cramming reviews. Statistics are calculated from the nominal intervals Anki stores in the review history. This means that same length learning steps are grouped together and reviews are counted for their scheduled interval even if done early or late. Tested with Anki 2.1.15 - 2.1.26. Version history: 2020-09-26: - Show non-integer learning step lenghts as minutes and seconds 2020-01-12: - Initial release


As add-ons are programs downloaded from the internet, they are potentially malicious. You should only download add-ons you trust.

Supported Anki versions:

To download this add-on, please copy and paste the following code into Anki 2.1:


If you were linked to this page from the internet, please open Anki on your computer, go to the Tools menu and then Add-ons>Browse & Install to paste in the code.

All Anki 2.1.x Add-Ons Contact Author


on 1601489017
Very useful.

Can the rounding of steps be disabled?

My steps are non-integer amount of minutes (because of this add-on). The add-on shows integers. I read the code and thought it's what Anki gives it, but the add-on still distinguishes them, so I am not sure.

Comment from author before post was edited
What do you mean by rounding of steps? There should be no rounding.

If you mean the somewhat quirky way learning steps are displayed, that's just how Anki stores those in the review log.

Edit: It didn't even occur to me that Anki supports non-integer learning steps. The latest version shows those as minutes and seconds.
on 1588495444
It's very beneficial to use longer learning steps than default.

See here:
- https://masterhowtolearn.wordpress.com/2018/10/30/what-i-discovered-from-tweaking-the-anki-setting/
- https://eshapard.github.io/anki/what-anki-learning-steps-to-use.html
- https://eshapard.github.io/anki/anki-learning-steps-with-feedback.html
on 1578890169
Excellent add-on for those that use long learning steps (i.e. 1, 2, 3 days).
on 1578840467
The first graph should respect the statistics page filters (1 month, 1 year or always). Overall, congratulations on the addon.
Comment from author
The graph should already respect those settings. If it doesn't, it might be a bug caused by some incompatible add-on or too old version of Anki.

Please note that if your performance has stayed about the same over time, the graphs will look very similar regardless of the selected time span. The scale on the right side of the graph should still change to reflect the total number of reviews.

If you are sure this add-on is showing wrong numbers, please list any other add-ons you are using, and I will investigate the issue.