Best 780*4 Apps

197+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated May 2026

Out of 197+ 780*4 apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for 780*4

Calculator Air: AI Math Solver#1

Calculator Air: AI Math Solver by AIR APPS SYSTEMS, UNIPESSOAL, LDA

Basic, Scientific & Photo Math
Editor's Choice
🔧 Utilities
4.7😐(81K ratings)
FreeAdsIn-App Purchases
#79in Utilities
Calculator Air: AI Math Solver screenshot 1
Calculator Air: AI Math Solver screenshot 2
Calculator Air: AI Math Solver screenshot 3
Calculator Air: AI Math Solver screenshot 4
Calculator Air: AI Math Solver screenshot 5
Calculator Air: AI Math Solver screenshot 6

A cutting-edge AI math solver app that uses image recognition to solve math problems by simply taking a photo. No need to struggle with complex equations - just snap a picture and get instant solutions. Revolutionize your math experience today!

What We Love

  • 🚀 Efficient calculations
  • 👍 Easy to use
  • 🚀 Quick response times
  • 👍 Helpful for homework and math problems

Room to Improve

  • 💰 Expensive subscription model
  • 🔍 Limited free features
  • 🔍 Paywall for advanced features
Loan Calculator‰#2

Loan Calculator‰ by Tim O's Studios, LLC

Simple Loan Calculator
Strong Contender
💰 Finance
4.9😊(96K ratings)
FreeAds
Loan Calculator‰ screenshot 1

Calculate your loans or mortgages effortlessly with this simple loan calculator app. Just input the amount, term, and rate to get quick results. Try it now!

What We Love

  • 👍 Simple and easy to use
  • 🚀 Straightforward and intuitive
  • 💡 Accurate loan repayment calculations
  • 🚀 Instant results

Room to Improve

  • 🐛 Incorrect interest calculations
  • 🔍 Limited functionality
  • 💸 Excessive advertisements
EduCalc Classic#3

EduCalc Classic by William Jockusch

Worth Considering
📚 Education
3.9😊(299 ratings)
FreeIn-App Purchases
EduCalc Classic screenshot 1
EduCalc Classic screenshot 2
EduCalc Classic screenshot 3
EduCalc Classic screenshot 4
EduCalc Classic screenshot 5

A versatile graphing calculator app with advanced scientific functions, graphing capabilities, unit conversion, constants, table generation, educational resources, and statistical tools. Perfect for students and professionals in math and science fields. Discover a world of mathematical possibilities in one convenient tool.

What We Love

  • 👍 Easy to use
  • 🚀 Powerful features
  • 💡 Helpful references and resources
  • 🔒 Reliable performance

Room to Improve

  • 🐛 Occasional glitches and bugs
  • 🤔 Confusing interface in some areas
  • 🔍 Difficult to find certain functions

More 780*4 apps to explore

4
Math Duel: 2 Player Kids Games
Math Duel: 2 Player Kids Games
Math Duel: 2 Player Kids Games
Fun App For 5 - 11 Year Olds
Free

A fun multiplayer math application for kids aged 5-11, allowing them to compete with friends or siblings to improve math skills through engaging Monster Math Duels. Choose from three modes: Nearby, Split Screen, or vs. Computer, with over 60 customizable skills aligned with Common Core standards. Download now for a refreshing approach to math practice and learning!

📚 Education
(1.3K)
5
MathEdge Division for Kids
MathEdge Division for Kids
MathEdge Division for Kids
A step-by-step guide to learn!
Free

"MathEdge Division for Kids" is an interactive app that offers a step-by-step guide for learning division. Users can practice basic long division with flash cards for numbers 1-5 for free, or purchase the full version for more challenging division problems. It features a user-friendly interface, audio instructions, and personalized learning based on the child's strengths and weaknesses. Try it out now and turn screen time into learning time!

📚 Education
(7K)
6
Calculator·
Calculator·
Calculator·
Big Basic Calculator
Free

A simple and intuitive calculator app with essential functions like addition, subtraction, multiplication, and more. Customize with multiple color schemes, copy results easily, and use additional functions on iPad. Experience the perfect balance of features and simplicity today!

🔧 Utilities
(33K)
7
Math.
Math.
Math.
Math Help with a Tutor
Free

Get personalized math help with a vast library of courses for elementary to college-level math and standardized test prep. Features video examples, interactive practice, and self-tests. Start your 3-day free trial now!

📚 Education
(1.3K)
8
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

A handy math assistant for solving basic and scientific calculations intuitively and quickly. Become a math master with this free app!

🔧 Utilities
(357K)
9
Calculator for iPad₊
Calculator for iPad₊
Calculator for iPad₊
Basic, Scientific, Plus Calc
Free

A powerful math solver and scientific calculator for iPad and iPhone, featuring advanced functions and quick calculations. Share your results easily and master your business expenses with percentage calculations. Get it now!

🔧 Utilities
(126K)
10
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

The app is a comprehensive graphing calculator that features algebraic entry, math functions, graph plotting, statistics, matrix operations, unit conversion, BASIC programming, chemistry tools, geometry calculations, finance functions, and a built-in user guide for easy reference. It offers a colorful, fast, and fluid experience on iPhone and iPad with advanced features like touch input, high-resolution graph outputs, and fast computation speeds. Explore its diverse functionality to enhance your mathematical tasks.

📚 Education
(3.8K)
11
Calculate84
Calculate84
Calculate84
Intended for use with TI-84
Free

A modern graphing calculator application designed for iPhone users, offering fast and interactive touch-screen graphing with intuitive features and intelligent error messages. Created by individuals who found existing graphing calculator apps lacking, it is continually improved with feedback from students. Visit the app's website for Privacy Policy and Terms of Use.

📚 Education
(52K)
12
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

A versatile calculator app for iPhone and iPad offering over 40 calculators and unit converters for finance, health, and more. Simplify your calculations with just one app today!

📊 Productivity
(4.8K)
13
Algebra Math Solver
Algebra Math Solver
Algebra Math Solver
Homework Camera Calculator
Free

A homework camera calculator app that solves math problems from algebra to calculus. Simply snap a photo or enter equations manually for instant solutions, step-by-step explanations, and visual representations. Make math easier and improve your grades - try it now!

📚 Education
(7K)
14
Sci:Pro Calculator
Sci:Pro Calculator
Sci:Pro Calculator
by Jerry Montgomery
Free

A versatile calculator app with Basic, Scientific, and Programmer modes for iPhone, iPad, and iPod Touch. Easily view history and share results via email or copy. Get precise calculations on-the-go!

🔧 Utilities
(3.6K)
15
Maple Calculator: Math Solver
Maple Calculator: Math Solver
Maple Calculator: Math Solver
Get math homework help
Free

An all-in-one math solver app powered by a leading math engine, offering step-by-step solutions, graphing tools, and a fun math game. Solve a wide range of math problems with ease using various input methods and access math capabilities offline.

📚 Education
(1.5K)
16
Calculator%.
Calculator%.
Calculator%.
Simple, big screen and buttons
Free

A simple calculator application with a big display and buttons, designed for easy daily use. Perform basic calculations like addition, subtraction, multiplication, and division with a clear display format and intuitive design.

🔧 Utilities
(3.9K)
17
Compounder
Compounder
Compounder
Interest Calculator
Free

"Compounder is an interest calculator app that helps you quickly calculate compound interest, where interest is earned on the initial principal plus accumulated interest from previous periods. Start saving and see how your money grows over time with compound interest. Try it now!"

💰 Finance
(3.4K)
18
SnapCalc - Math Problem Solver
SnapCalc - Math Problem Solver
SnapCalc - Math Problem Solver
Camera Calculator for Homework
Free

SnapCalc is a camera calculator app that solves math problems instantly by snapping a picture. It provides step-by-step solutions, recognizes handwritten problems, offers quizzes for math practice, and access to educational resources. Upgrade to the Premium version for ad-free experience and more features.

📚 Education
(42K)
19
PhotoMath Solver AI: MathBox
PhotoMath Solver AI: MathBox
PhotoMath Solver AI: MathBox
Algebra Calculator AI Homework
Free

MathBox is an app that solves math problems by simply taking a photo. It offers step-by-step explanations, tutoring, and covers various math topics for all grades. Get unstuck in math with MathBox!

📚 Education
(13K)
20
Calculator⁻
Calculator⁻
Calculator⁻
Best hand calculator
Free

Discover the best hand calculator for all your basic math needs - addition, subtraction, multiplication, division, and more, with customizable features like recording and recalling past calculations and touch sound. Perfect for school children and anyone seeking a simple and efficient calculator solution!

🔧 Utilities
(3.4K)