Overall I would recommend this app to anyone who has a difficulty in math. I love it sooo much, i suggest other also for downloading this app for your maths'problem, this app never disappointed me, still, if you need more detailed answer then you should buy the premium membership.
I only have 1 problem, and if you have a problem with multiple letters, you can't choose just one letter to solve, one of the top 3 best apps I have ever used, thank you you saved me a whole lot of time when I have homework, this is one of the best apps for those who understand HOW to do the work but can't be bothered to DO the work.
If you want to see a step-by-step you do need a subscription to the app, but since I don't really care about that, I'm just fine with the free version, the camera. A great thankx to This app inc. THANKS YOU, humor is done. Solves most problems but does not explain into depth or provides context on math equation.