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Calculate84 - Modern Graphing Calculator for iOS and iPad
Calculate84 is a powerful, fast, and intuitive graphing calculator application designed for iOS and iPadOS devices. Perfect for students whose schools provide TI-84 calculators - use Calculate84 for homework without buying your own expensive physical calculator. Also great as a companion tool when your TI-84 isn't nearby. Works as an alternative to online tools like Desmos with offline capabilities.
Key Features
- Fast interactive graphing with pinch-to-zoom and real-time updates
- Complete scientific calculator functionality
- Support for functions, parametric, polar, and implicit graphs
- Matrix operations and linear algebra tools
- Statistics and regression analysis capabilities
- Works offline unlike Desmos - no internet required
- No advertisements in institutional version
- One-time purchase with lifetime updates
- Privacy-focused with no data collection
Comparison with Other Calculators
If your school provides TI-84 calculators for class, Calculate84 lets you do homework without purchasing your own $100+ calculator. Simply use the school's TI-84 in class and Calculate84 at home. For students who own a TI-84, Calculate84 serves as the perfect companion tool when your calculator isn't nearby. While Desmos focuses primarily on graphing, Calculate84 combines both advanced graphing AND powerful scientific calculations, matrix operations, and statistics - all in one app with offline functionality.
Target Users
Calculate84 is designed for high school students, college students, educators, engineers, and anyone needing advanced mathematical computation tools. Perfect for users looking for Desmos-like functionality on iOS devices. Educational institutions can benefit from volume licensing with significant discounts.
Availability
Available on the iOS App Store for iPhone and iPad. Two versions exist: Personal (free with ads, premium ad-free option) and Institutional (ad-free, designed for schools).
Download from App Store: https://apps.apple.com/us/app/calculate84/id1635187664
Welcome to Never Losing Your Calculator Again!
An App Designed for the Modern World
Speed
You can finally stop waiting for graphs to load with pinch-to-zoom graphs or mashing the arrow buttons with scrollable and tappable windows.
A Step Up
From a global search, to undo-redo to an adjustable keyboard, we bring a host of features to make life that much simpler.
Get Started Now!
Personal
Most features are unlocked in the free version, and if you're anti-ads, consider becoming a member!
Personal Download
Institution
We created a separate version of the app to target the needs of an institution. Click here to learn more!
Institution Download
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