1. Home
  2. Topics
  3. High School Calculator

Best High School Calculator Apps

249+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our high school calculator list covers 249+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top High School Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calculate84Calculate84Free4.8★ (53K)YesYesSep 2026
2Scientific Calculator - CalScientific Calculator - CalFree5.0★ (1)YesYesAug 2026
3Calculator #Calculator #Free4.6★ (36K)YesYesSep 2026
4Ncalc - Graphing Calculator 84Ncalc - Graphing Calculator 84Free was $4.994.6★ (4.9K)YesYesSep 2026
5Scientific Calculator FX-991CWScientific Calculator FX-991CWFree—NoYesAug 2026
6Graphing Calculator X84Graphing Calculator X84Free4.5★ (50K)YesYesSep 2026
7Calculator HD Pro LiteCalculator HD Pro LiteFree4.6★ (51K)YesNoSep 2026
8Calculator‰Calculator‰Free4.9★ (409K)YesNoSep 2026

Top Picks for High School Calculator

Calculate84#1

Calculate84 by Century Light LLC

Intended for use with TI-84
Editor's Choice
📚 Education
4.8😊(53K ratings)
FreeAdsIn-App Purchases
Calculate84 screenshot 1
Calculate84 screenshot 2
Calculate84 screenshot 3
Calculate84 screenshot 4

This app offers a modern graphing calculator experience on your iPhone. It features fast, interactive touch-screen graphing, scrollable windows, and intelligent error messages for a more intuitive user experience. Designed to be a usable alternative to physical graphing calculators.

What We Love

  • 👍 Identical to TI-84 calculator
  • 🚀 Seamless and intuitive user experience
  • 💰 Affordable alternative to physical calculator
  • 📱 Convenient to have on phone
  • 🔍 Comprehensive functionality matching physical calculator
  • 🤝 Honest and responsive developers
  • 🎨 Beautiful and polished user interface

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔍 Missing some advanced features like regression types
  • 🔒 Previous purchases removed without warning
  • 💰 Subscription model can be expensive
  • 📺 Intrusive ads in free version
Scientific Calculator - Cal#2

Scientific Calculator - Cal by 长宏 侯

A Better Scientific Calculator
Strong Contender
🔧 Utilities
5.0(1 ratings)
FreeAdsIn-App Purchases
Scientific Calculator - Cal screenshot 1
Scientific Calculator - Cal screenshot 2
Scientific Calculator - Cal screenshot 3
Scientific Calculator - Cal screenshot 4
Scientific Calculator - Cal screenshot 5
Scientific Calculator - Cal screenshot 6

Perform complex calculations with a natural input interface. This app offers instant results in both number and expression formats, supporting a wide range of mathematical functions. Enjoy a clean design with customizable options and offline availability.

Calculator ##3

Calculator # by Incpt.Mobis

Scientific Calculator
Worth Considering
🔧 Utilities
4.6😐(36K ratings)
FreeAdsIn-App Purchases
Calculator # screenshot 1
Calculator # screenshot 2
Calculator # screenshot 3
Calculator # screenshot 4
Calculator # screenshot 5
Calculator # screenshot 6

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

What We Love

  • 👍 Easy to use
  • 🚀 Powerful functionality
  • 💡 Helpful for math classes
  • ⭐ Great for students
  • 👌 Works like a real calculator

Room to Improve

  • 🔍 Confusing interface after update
  • 📢 Too many intrusive ads
  • 💰 Paywall for advanced features
  • 🐛 Incorrect calculations
  • 🔇 Loud audio ads

More High School Calculator apps to explore

FAQ about High School Calculator

What are the best high school calculator apps for iPhone?
Calculate84 tops our high school calculator apps ranking as of September 2026, with a 4.8-star average from 53K App Store ratings, and it's free to download.
Yes — 20 of the top high school calculator apps we rank are free to download, including Calculate84 and Scientific Calculator - Cal.
Calculate84 shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ high school calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Calculate84 provides a modern graphing calculator experience directly on your iPhone. It aims to replicate the functionality of physical graphing calculators with a user-friendly interface, featuring fast touch-screen graphing and scrollable windows.
Key features include fast and interactive touch-screen graphing, scrollable windows for easier navigation, and intelligent error messages to help users understand and correct mistakes. The interface is designed to be intuitive and familiar.