It's obviously not as full featured as Rosetta Stone, nor does it come with courses, nor does it use voice recognition - but it does rely on basically the same research into memory and I've had a lot more success using Anki than Rosetta Stone.
Disclosure: My professor at CMU runs the company.
That being said, duolingo is awesome :)
It's obviously not as full featured as Rosetta Stone, nor does it come with courses, nor does it use voice recognition - but it does rely on basically the same research into memory and I've had a lot more success using Anki than Rosetta Stone.