Won’t open and constantly crashes. The app itself was very expensive and now I can’t use it al all. Very frustrated.

Limited and basically no useful. Case in point; in the few definitions it offers states that the MVT has an alternate name AVT. Yes mean and average are synonymous but really. Don’t wast we your money. Refund please.

This app saved me from calculus problems numerous times. However, recently it’s keep crashing every time I tried to open it. I’ve never had any problem with this app before updating to iOS 13.2. I’m not sure if it’s the new update or something is wrong with this app. Fixing this issue would be tremendously helpful!!!

This app saved me from my tedious online math course! I’m not bad at math, but this app surely will help you understand calculus and save you a lot of time when it comes to long exercises. It takes time to understand how it works, otherwise, worth it 100%.

Entering formulas is cumbersome, backspace always deletes from the end, even if you click to change the cursor position. So if you made a mistake in the first few characters be ready to rewrite the whole thing. There’s no way to calculate the derivative of second order of an implicit function. That’s disappointing. And I’ve only used it for ten minutes.

I was excited at a glance, but I was hoping this would give a more in-depth look at calculus intuitively. The app doesn’t do anything that Alpha can’t so I’m now a slightly disappointed mathematics student with a convenient app.

Giving a certificate error please fix

This app is a life saver.

I am extremely unsatisfied with this app. I think mathway is so much more helpful. I feel like it doesn't make sense, it's hard to find the right category, and it is a waste of $4. Sorry but not sorry it's the truth there could definitely be some improvement on this app.

Just buy the Wolfram Alpha app. It does everything this app does and looks much better.