Editsaurus is covered by the MIT License. https://editsaurus.tylerwalters.com/. Source: about 2 years ago

I use google docs and a mixture of editors. ProWritingAid is my favorite and has a free version (limited to 500 words at a time). I also use a few free editors on occasion: Editsaurus, Typely and Hemingway Editor. Editors are good for finding errors, but also just breaking your text down for you to help you find any weird patterns, overused words, etc. Source: almost 3 years ago

You can also use ProWritingAid free (which limits the word count of what you can put in and review). I prefer it to Grammarly, personally, and use it before and after sharing fics with my beta reader. They also have some blog posts that aren't bad. Hemingway Editor and Editsaurus have also been useful to me. Source: almost 3 years ago

Here's a free AI bot that can teach you to read. Source: over 1 year ago

Here is some ai chatbots she can try to improve her english : https://replika.com/ , https://www.kuki.ai/ , and https://myanima.ai/ , she can also use https://andychatbot.com/ , this one is pretty good since she has an average english level so using the app would make her learn words and grammar instead. Source: almost 2 years ago