Does not recommend this product
Nice concept, however the implementation has to be improved, not just like replacing words in a word list such as turning "and" into "as well as", "until" into "until such time as", 1. that is not "relevant" characters, 2. that makes the quality of the passage worse, 3. showing number of english words added is more useful than showing number of characters added
https://github.com/VishwaGauravIn/pro-writer/blob/5feba3df599685f3963ea5fd91ad33c8d07190a1/components/ToolBox.js#L222
If you would really want to implement a word replacer, I would suggest you to read it from an independent word list file, not hard code it since it is just a bad coding practice