I've been doing Duo (French) for a couple of months, but a I'm not sure I've learnt anything, it just feels like I've reinforced past learning.
I started Chinese, and it just seems so much of a mish-mash - it's like they just randomise testing and eventually you glean enough from the test questions to answer.
With French the closest I've come to learning, that I can point to, is from users answers to comments from other user. And the good and bad are mixed, there's no clarity.
Duo taught me japanese characters, but I had a hard time really improving my french grammar from it. There's no substitution for in-person conversation.
I started Chinese, and it just seems so much of a mish-mash - it's like they just randomise testing and eventually you glean enough from the test questions to answer.
With French the closest I've come to learning, that I can point to, is from users answers to comments from other user. And the good and bad are mixed, there's no clarity.