I loved speechify but had 2 problems :
- its monthly price
- its character limitations.
So I built WithAudio (https://with.audio). I've been working on this for the past 8 months. A one time payment desktop app that lets you listen or listen while following the text highlighting.
Soon I realised me and many users prefer to have the option to do this in their browser. So I built the browser extension. The extension is free but works only if you have the WithAudio app (which is a paid product).