Good helper. I have a really hard time in math and I was struggling to keep my grade up, i rarely see adds, I don't mind ads. It's a awesome app ¤©¤©I have been using it from more than 2 years and it is really helpful I solved my lot of math problems and also got the formula and knew how to solve ☺ï¸it has a new feature Is This app plus is a paid service so, I didn't utilized it but,I think it would be awesome ¤© But the free service is also fantastic, fantabulous Superb, good ƒ nice what ever you say.