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so overall this is a pretty good graphing calculator emulator for your phone. I like how it vibrates when you hit buttons on it to let you know that you actually hit the button. so far the answers it gives all seem to be correct also. unfortunately, it is missing a lot of important things. It can do linear regressions, but no other types of regressions. I assume the developer is working on adding those but they should really be near the top of the list. they are part of basic pre-calc so they should be added asap. I will say that as of right now it is definitely the best one available for free because the other ones lock literally everything behind paywalls but still let you download it for free which just seems like a scummy way of boosting downloads. if you add in regressions, i’ll bring my rating up, but it wont be 5 stars until all commands are available.

I am amazed, continuously, at what developers can do these days. I forgot my TI-84 at home when I had every intention of grinding through some stats homework at school (I’m in college and taking a few online classes). Obviously, it is no substitute on the exams, but when I figured out I could do combinations and permutations and summations, I was so happy!!! No more switching calculators between backpacks, I’ve found my solution. Keep working on the apps function and the developers will make money off of this. There is even a copy function if you click the equation (highlights pink) and you click enter, just like normal. I look forward to testing the limits of this calculator and seeing what changes can be made. Good luck!

I am a mathematics educator and believe this is a great resource for my classes. However, when teaching my students about sequences and series, parametric function, polar functions, this calculator does not allow the ”mode” to switch. It says it's in the specified mode but doesn't switch. However, this is still an excellent resource for students who need it for other concepts in mathematics.