Pascal (formerly Calculator³) is a professional-grade 3-in-1 scientific, graphing and programmer calculator. For FREE, Pascal comes loaded with a feature-packed scientific calculator, Today widget and Apple Watch app. The graphing calculator and programmer calculator require IAP unlock, but come with 3 trials each for you to give them a test run. During the trial periods you have access to all features. TIP: Simply reinstall the app to replenish the trial counts.

Some noteworthy features:

Scientific Calculator¹ (FREE)
- Supports degree, radian and gradian modes
- Decimal factorials
- Modulo operator
- Permutations (nPr) and combinations (nCr)
- Standard memory functions
- RPN mode

Graphing Calculator² (IAP)
- Includes all functions the scientific calculator offers
- TI-like design
- Perform calculations on a smart tape (i.e. no need to close parenthesis, multiply out brackets, real-time syntax highlighting)
- Plot graphs using adaptive sampling algorithm to generate precise results
- Show or hide roots/intersections and trace values

Programmer Calculator³ (IAP)
- Supports 8, 16, 32, and 64-bit bitwise calculations
- Binary (base-2), octal (base-8), decimal (base-10), and hexadecimal (base-16) numeral systems too
- Unicode (UTF-16) and ASCII character encoding
- A binary table that shows you in real time the binary representation of the current operand
- RPN mode

What’s New

Version 9.0.0

Calculator³ is now renamed to Pascal, the 3-in-1 calculator. So long, Calculator³!
- while tracing graphs, you can now tap on overlapping trace labels to alternate their Z position (to view the covered up labels underneath)
- UI glitch fixes
- localization improvements

If you enjoy using Pascal, please consider leaving a positive review. It means a lot!

Ratings and Reviews

4.0 out of 5
16 Ratings

16 Ratings

Freddsgy ,


Though it cost money for the Graphing section, it has a well put feature for you to test it out before actually buying it same for the Programming configuration. If I remember correctly I think the app costed money, but I dont remember, but I think it's worth buying and all( the best calculator I've ever ran into) it's quite useful when or not my own non-phone graphing calculator dies and it's just fun and super easy to use this app. Also to get the other features besides the standard scientific-Calculator is $1 I'm pretty sure that's a good deal. Worth it every way, but every app needs improvement and anyone can help the developer do that. 🔗

Nikheim22 ,

Great and useful utility

Very handy if you don't have the money to get physical scientific, graphing, or programer calculator. But i have found a bug and have a suggestion, so the bug i have found is where you input any number(scientific calculator) and want
to give it an exponent by using the (2nd)+(2x) buttons it adds a random digit 2 (to be specific) next to the number you inputed [ex: (9)(2nd)(2x)] in the area of your calculations it shows {92^} whereas it should be {9^}. Also it would be great if you could choose a color scheme for your calculator(s), because i use my iPod for many other things with a very low brightness to save battery, and with the dark colors it is very difficult to see the buttons, or characters without turning my brightness up. So if these were added it would be very helpful, and fixed I will rate a 5-star.

TheCyberHunter ,

Update: problem needing resolution

This was my favorite minimalist app until just now when the premium version I had installed reverted to the basic version. This happened immediately after I tried the new OS11 dark theme. DON’T DO IT YET! Then reverted back. Developer, I can’t get ahold of you but could tell you how to replicate the condition. Please fix. Will revert to 5 stars when fixed. Three for now because this is in total a major function and aesthetic loss that I can’t undo. Part Apple’s responsibility; part developer’s. Also, can’t find you on Google App Store. Are you there?

Ready to be resatisfied.

In-App Purchases

Graphing Calculator
TI-like graphing calculator with smart tape.
Programmer Calculator
Programmer calculator for binary conversions.

App Privacy

The developer, Andrew Wei, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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