Calculate84

Graphing made for iPhone

Calculate84 brings the graphing calculator experience to iPhone with a fast, touch-friendly design.

What you can do:
• Plot and explore graphs with smooth touch controls
• Find familiar calculator functions quickly
• Scroll naturally through equations and results
• Get clearer, more helpful error messages
• Send feedback directly from the app

Why we built Calculate84

We relied on graphing calculators ourselves and wanted an app that felt easier to use on a modern phone. Before launch, we worked with students to refine the experience, and we continue improving it based on user feedback.

Send feedback

Tap the red Feedback button in the app.

Terms of Use (EULA): https://calculate84.com/terms-of-use