While different in style, these apps offer comprehensive English courses for free or at a low cost.
Rosetta Stone V3 remains a powerful tool for mastering American English. While the L1-L5 path provides a massive amount of content, ensure you are downloading from a safe source or, better yet, check with your local library to see if they offer a free, legitimate license to the latest version. rosetta stone v3 english american l1 l5 free