"“Great app for calculus and linear algebra. The interface is clean and easy to use, making complex calculations a breeze.”"
Perfect for: Perfect for students and professionals needing a powerful graphing calculator on their iPhone.
Track Calculate84's performance in Education over the last 30 days
Current Rank
#39
Best Rank
#38
All-time high
Average Rank
#39
30-day average
I hate how expensive the TI calculators are (and the prospect of ewaste, as well as buying something my phone or laptop can do better, and supporting a single company monopoly), but also like to use something allowed on tests (so I can build skills for testing). This scales well on iPhone and iPad while still being fairly accurate to TI’s UI. (It does half screen, third of screen, full screen, slide over, etc super easily, so I can use it with procreate, Freeform, notion, etc smoothly). It’s also extremely convenient to not have to carry a giant old fashioned calculator with me. I think I prefer Desmos for a lot of tasks, but this helps for testing and has more specialized functions that would be done with Mathway or misc sites. The purchase model is also wonderful. I bought it years ago for highschool and can continue using it through college Must have for students I hate how expensive the TI calculators are (and the prospect of ewaste, as well as buying something my phone or laptop can do better, and supporting a single company monopoly), but also like to use something allowed on tests (so I can build skills for testing). This scales well on iPhone and iPad while still being fairly accurate to TI’s UI. (It does half screen, third of screen, full screen, slide over, etc super easily, so I can use it with procreate, Freeform, notion, etc smoothly). It’s also extremely convenient to not have to carry a giant old fashioned calculator with me.I think I prefer Desmos for a lot of tasks, but this helps for testing and has more specialized functions that would be done with Mathway or misc sites.The purchase model is also wonderful. I bought it years ago for highschool and can continue using it through college
I absolutely love this calculator. You can actually do way more than the ones that you pay for. It’s so precise and sharp. Calculated 84 I absolutely love this calculator. You can actually do way more than the ones that you pay for. It’s so precise and sharp.
There is every feature you could think of. My go to. lives on my first home screen. Responsive and comprehensive There is every feature you could think of. My go to. lives on my first home screen.
Very helpful when you don’t have a Ti84 calculator or if it is dead and you have to do homework Helpful and useful Very helpful when you don’t have a Ti84 calculator or if it is dead and you have to do homework
A free version of the 100 dollar calculators that literally works better. There’s no point in not having this app Literally the best A free version of the 100 dollar calculators that literally works better. There’s no point in not having this app
Century Light LLC
8/27/2025