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Plottron

Plottron

3D graphing calculator

12 ratings
7 reviews
🔧 Utilities
Free

Details

Released
September 21, 2015
Updated
September 19, 2026

Features

Developer

Billy Lin
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Plottron screenshot #1 for iPhone
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ipad
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About

This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.

✓2D and 3D graphing
✓Implicit graphing
✓Complex number visualization
✓Symbolic differentiation
✓User-defined variables and functions
✓Live evaluation
✓Calculation history
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What's New in Plottron

1.9.0

September 19, 2026

UI fixes and refinements

User reviews

Most RecentHighest RatedLowest Rated

Amazing complex function graphing

Yes
JJudeMasonNard

Factorial should be implemented as Gamma

Looks like a splendid program. A minor tweak is that the factorial function returns the wrong answer for negative numbers. Implementing this as Gamma(Z-1) should fix.
IIynPilot

Best calculator app

This is the best calculator app out there. Really love the dark mode skin too.
@@eyqs

Great graphing calculator

Very helpful, only complaint so far is it doesn’t work in horizontal
Sstankey!

Useful calculator

Really good app, simple to use. Does what you need it to do and is easy to navigate
Ssmilysimon
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FAQ

What kind of graphs can Plottron create?

Plottron can graph regular functions, parametric relations, and functions in polar/spherical coordinates. It also supports implicit graphing and visualization of complex maps w=f(z) with domain coloring plots.

What are the key scientific calculator features of Plottron?

Plottron includes user-defined variables and functions, symbolic differentiation, nCr/nPr calculations, complex numbers, live evaluation, calculation history, and probability density functions like Binomial and Normal (Gaussian).

How does Plottron handle parametric relations?

For parametric relations, you can use a semicolon (;) to separate functions. This allows for graphing curves defined by two or more functions, such as circles or ellipses.

Can I use variables and define my own functions in Plottron?

Yes, Plottron allows you to define user-specific variables and functions. You can then use these defined variables and functions in your calculations and graphs, making it highly customizable.

Is Plottron available on multiple devices?

Plottron is supported on iPhone, iPad, and iPod, making it accessible for users across various Apple devices. Its interface is designed to adapt to different screen sizes.

How often is Plottron updated?

The latest version of Plottron is 1.8.8, which was last updated on March 27, 2026. This indicates a commitment to ongoing development and feature enhancements.

What is the age rating for Plottron?

Plottron has an age rating of 4+, making it suitable for a wide range of users, including younger students. The app's content is generally considered appropriate for all ages.

Does Plottron have ads?

No, Plottron does not contain advertisements. It is a completely ad-free application, ensuring an uninterrupted user experience for all its features.