Ulf Morys

A good idea - and loved your characterization of the weak (...or strong ?) points of Duolingo ! I can attest to this, speaking several languages and finding the over-gamification of Duolingo most of the time both useless .... and fascinating at the same time for the simple fact that I happen to work in the gaming industry ;-)

You have my attention with these announcements :-)

Good idea ! The problem: you're so good, I endorse you even without incentive ;-) However, what I noted: the utility of recall increases exponentially with the number of additions to the graph (...well, the classical snowball effect!). So the limitation of the free version never lets people experience this feeling. Wouldn't it make sense to implement a 2-stage free version: when you reach a...