Here is an interesting article on BBC about "An effortless way to improve your memory". TL;DR you might want to have a few minutes of rest between your learning sessions on Lingvist and literally do nothing. IMHO, the best advice ever.
Forum says goodbye
Incorrect "sehen" form
Can my mobile phone and my Laptop synchronise using the app?
Lingvist Progressive Web App
Linguistic Questions > DE
New to german, learning difficult words