The free DuoLingo service already has an army of aspirational bilingual supporters, but that's no reason to rest on your laurels. Today the developers have updated the Android app with a few changes to the user interface. The basics of the app have only been tweaked slightly - a digital spit and polish, if you will - but extra screens added to the end of lessons and progression screens should help users get a feel for where they are in the program.

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The end of lessons screens show progress and improvement on a day-to-day basis, sot of like a fitness app or an RPG. Impressively, the developers have actually managed to shrink the app while expanding its capabilities. DuoLingo is now down to a mere 4.8MB download from 13.8MB, surely manageable on even the most frugal of data plans. I'd imagine that re-creating at least some of the app's visual assets had a lot to do with this. The tablet optimizations and offline support added earlier this year are still present.

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DuoLingo's mobile game approach to language learning remains intact, and it's still as free and clean as ever. Any Android device running 2.2 or later is compatible with the app.