1. Fast, Interactive Touch-Screen Graphing
2. Everything is where you’d expect it to be
3. Scrollable Windows (no more spamming the up arrow keys)
4. Intelligent Error Messages
5. Convenient
6. IT’S FREE (for now).

1. We (the creators), once relied on graphing calculators, and after installing countless, similar apps, we couldn’t find anything useable. Hence, we made our own.

2. Before launching on the App Store, we personally worked with a limited, yet sizable, number of students to continuously improve the app.

For those who use it now, it will always be free. However, eventually it will be monetized to ensure it’s sustainable for the developers.

Regardless, we get it, not everyone can just buy things whenever they want. Hence why, even after release, we’ll constantly be trying to find ways to make it available to everyone.

1. Press the red feedback button.

What’s New

Version 1.5.6

Fixed issue with the keypad size resetting.

Ratings and Reviews

4.5 out of 5
1.8K Ratings

1.8K Ratings

Дима_и_Вероника ,

I never usually leave reviews, but this app is great.

I am an engineering student, and I am always in need of a calculator handy. There’s quite a few great apps out there that can be used as a graphing calculator, but getting used to different user interfaces is always a pain when switching between calculators. I’m used to the TI-84 Plus CE, and this calculator is exactly identical to a TI-84 Plus. Not all the functions of the calculator are available yet (the apps button currently does not do anything) but most of the functions that are necessary to my work are available (like matrices and trig particularly). Overall, this is a great app and I never usually leave reviews, but had to give my opinion for amazing app.

The hobbit eman ,

good but missing a lot of important stuff.

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.

Eaurius ,

Forgot my calculator when I needed it most

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!

App Privacy

The developer, Century Light LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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