Mathpix alternative

Hello Guys, I am in the search of a tool that lets me convert an image math equation to LaTex. Theres an app called Mathpix that only allows me to take 50 images and that’s not to many equations. there’s any alternative or solution to this?

I’m not familiar with LaTex but I hope this link helps
https://tex.stackexchange.com/questions/116863/image-equation-to-tex