I built an app earlier last year to help with spaced repetition on web content: https://retaino.com
It's been interesting to see a lot of interested over the past year around the concept, though it may just be the Badder-Meinhof effect at play (which I'm now able to recall the name of thanks to Retaino!)
It's been interesting to see a lot of interested over the past year around the concept, though it may just be the Badder-Meinhof effect at play (which I'm now able to recall the name of thanks to Retaino!)