Absolutely. I did Duolingo Spanish (although I a) was fluent-ish in French, and b) had taken a Spanish course at University.) I can say without a doubt that I learned a ton (via Duolingo) and a trip to Cuba made it very obvious.
I am far from fluent, but I could get by in nearly all situations.
I'm learning Swedish now, and it's getting to the point where new languages are easier and easier to pick up. My partner is further than me, and knows a shocking amount of Swedish just from the Duolingo app.
I am far from fluent, but I could get by in nearly all situations.
I'm learning Swedish now, and it's getting to the point where new languages are easier and easier to pick up. My partner is further than me, and knows a shocking amount of Swedish just from the Duolingo app.