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scheduler: Dynamic Lapse Interval (alpha)

0.02MB. Updated 2020-08-14.
The author has shared 74 other item(s).


Test Upload. This add-on may or may not work. Use this at your own risk! Check the calculations of this add-on with deck and card info sidebar during review. This add-on adjusts the interval of a card you failed (rated as "1/again"). By default if you press "again" for a card it's reset and scheduled for the next day (Deck Options - Lapse - "New interval 0%" and "Minimum interval" 1 day). Many people consider this to be too short because this can increase your workload a lo. But this approach might have a shortcoming: Showing a lapsed card with a prior interval of 5 days after 4 days (80%) might be good but if the card had an interval of 5 years waiting 4 years for the first review after a lapse is too long for me. I would prefer less than a year (<20%). This add-on sets the lapse interval at 100% for short intervals and 25% for long intervals. For intervals between those two extremes the lapse interval is adjusted in a linear fashion. These values are user adjustable. Another add-on that changes the again interval based on the interval of the card you failed is Another Retreat (removed from ankiweb for unknown reasons in 2019-12). This is an interesting add-on but not what I wanted: This add-on should more or less always give you a fixed percentage of the prior interval. Post Feedback, Improvements, Error reports on github. # Versions - 2020-08-14 adjusted to V2 scheduler - 2019-08-28 initial upload


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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 1602930400
Hey, can you support 2.1.35 anki version?
Comment from author
Thanks for your interest in my add-on.

Then Anki creator mentioned in the summer (of 2020) that he's working on improving the internals of the scheduler [1]. These changes will make Anki faster, more stable, and maybe give add-on developers new options.

I guess that regular users won't notice these changes but that many scheduler related add-ons will break and need to be updated. At the moment my plan is to wait until these changes are released and then I'll try to adjust my add-ons.

There's no public timeline. I guess we'll have to wait a few weeks or months.

[1] https://github.com/ankitects/anki/pull/707#issuecomment-664097606
on 1601799114
Good idea! Thank you very much
on 1598085997
Firstly, I would like to draw attention to this related and hugely useful add-on: https://github.com/daedsidog/Anki-autoLapseNewInterval

I do see in the stats screen that retention with mature cards is worse than with young cards. So, I'll give the present add-on a try.
on 1597635490
Sadly, this does not work with the latest version I'm using 2.1.30 with v2 scheduler.

Edit: it is now working but the problem is the setting of the minimum rate cannot be adjust to value of a100 above. Furthermore, the confusing part is tweaking the setting of the minium interval days. So it is below the given value? Btw thank you for updating this.
Comment from author
I don't understand your questions. If you repost them in the thread in the official forum that I just added to the "contact author" button and reword and extend them I might be able to help.
on 1597560198
Broken :(
on 1567806095
Yet to try and who knows if I will notice much difference. I'm an experienced user of anki (whatever that info is worth). Really pleased someone put this up on Ankiweb.