[vhanda]

Duolingo seems like they have separate teams for iOS, Android and Web.

Their iOS team seems to be the one who experiment the most with new features, and then they either get discarded or finally make it to Android, and then in a few years to the Web.

It is really annoying, as when I used Duolingo (stopped because of the new update in Jan), I would often use all three platforms, and have the worst experience.