Here is a master list of all of the FREE Hindi learning resources online.
I put together what I believe is a comprehensive list of all of the free online resources to learn Hindi (DUO is right at the top of course), including video, audio, apps, courses, dictionaries, websites, textbooks ... you name it. The complete list is here: http://gratisglobal.com/learn-hindi-free/
If I missed anything at all, please let me know so I can add it. My criteria are that the resource must be free, useful and high quality. I do include apps and programs with the "freemium model" as long as the free offering is substantial enough.
Hope this is helpful. Susie
Cool! Thanks for mentioning it! I just checked it out. I see some things on the list are paid programs, but my list has only free Hindi resources just because I know a lot of people don't want to or can't afford to pay for language learning. The variety of available FREE online resources is pretty incredible.