1. Home
  2. Topics
  3. 777 Happy Calculation

Best 777 Happy Calculation Apps

208+ iOS apps curated and reviewed

4.6 avg rating
16 free apps
Updated June 2026

The best 777 happy calculation apps on iPhone average 4.6★ across 208+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for 777 Happy Calculation

Calculator for iPad!#1

Calculator for iPad! by 7th Gear

Basic & Scientific Calculator
Editor's Choice
🔧 Utilities
4.7😊(60K ratings)
Free
Calculator for iPad! screenshot 1
Calculator for iPad! screenshot 2
Calculator for iPad! screenshot 3
Calculator for iPad! screenshot 4

Quickly crunch numbers with our user-friendly iPad calculator app that offers basic and scientific functions. Download now for accurate calculations on the go!

What We Love

  • 📐 Versatile calculator with basic and scientific modes
  • 📝 Useful note-taking and calculation history features
  • 🎨 Customizable color schemes
  • 💻 Works well on both iPad and iPhone

Room to Improve

  • 💰 Ads can be intrusive in free version
  • 🔒 Lack of transparency around in-app purchases
  • 🔍 Difficulty finding and accessing premium features
WolframAlpha Classic#2

WolframAlpha Classic by Wolfram Group LLC

Strong Contender
🔍 Reference
4.1😊(1.2K ratings)
$2.99In-App Purchases
#48in Reference
WolframAlpha Classic screenshot 1
WolframAlpha Classic screenshot 2
WolframAlpha Classic screenshot 3
WolframAlpha Classic screenshot 4
WolframAlpha Classic screenshot 5

Get instant expert knowledge and computation with this powerful application based on Wolfram's computational intelligence. Access a vast array of algorithms and data to compute answers, generate reports, and explore various domains. Unlock additional features by becoming a Wolfram|Alpha Pro member. Privacy Policy: [Link] Terms of Use: [Link]

What We Love

  • 🚀 Essential app for everyone
  • 👍 Excellent for math and science
  • 👍 Sophisticated yet easy to use
  • 👍 Incredibly informative and interesting

Room to Improve

  • 🐛 Crashes and freezes
  • 🔋 Requires internet connection
  • 👎 Subscription model and loss of features
Calculator!#3

Calculator! by 7th Gear

Worth Considering
🔧 Utilities
4.8😊(4.2K ratings)
$0.99In-App Purchases
Calculator! screenshot 1
Calculator! screenshot 2
Calculator! screenshot 3
Calculator! screenshot 4

Calculator! is a versatile calculator app for iPad and iPhone with standard and scientific functions. Customize the look, take notes, view history, and perform complex calculations with ease. Perfect for math students and professionals.

What We Love

  • 💰 Reasonably priced
  • 📝 Useful note-taking features
  • 📊 Keeps a calculation history
  • 🎨 Customizable appearance

Room to Improve

  • 🤔 Confusing input box behavior
  • 🔍 Lack of graphing features
  • 🔍 Missing some scientific calculator buttons

More 777 Happy Calculation apps to explore

4
Calculator HD++
Calculator HD++
Calculator HD++
by smalltech sarl
Free

Experience a high precision calculator app that offers a user-friendly interface, supports multiple functionalities like undo, switching workspaces, Bluetooth keyboard compatibility, and more. Print and share your calculations with ease and precision for free!

🔧 Utilities
(268)
5
Desmos Graphing Calculator
Desmos Graphing Calculator
Desmos Graphing Calculator
by Desmos, Inc.
Free

Explore math with a powerful graphing calculator application that allows you to plot various equations, use sliders for interactive adjustments, create tables for data input, analyze statistics, and more. Visit the website to access the free browser version and enhance your mathematical skills today.

📚 Education
(1.3K)
6
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)
7
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Basic, Scientific & Photo Math
Free

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!

🔧 Utilities
(81K)
8
Math Ref Lite
Math Ref Lite
Math Ref Lite
More than just a math app
Free

Math Ref Lite is a free educational app that provides a sample of over 700 helpful formulas, figures, tips, and examples in various math subjects. It offers tools, search functionality, printing support, editable notes, and an improved user interface, making it a valuable resource for students, teachers, and anyone working with math. Try this app before considering the full version for a comprehensive math reference.

📚 Education
(7)
9
Desmos Scientific Calculator
Desmos Scientific Calculator
Desmos Scientific Calculator
by Desmos, Inc.
Free

Explore a powerful scientific calculator with functions beyond basic arithmetic - trigonometry, statistics, and combinatorics. Create and evaluate custom functions, work offline, view multiple expressions at once, and enjoy a seamless user experience - all for free.

📚 Education
(327)
10
CALC Smart Calculator ±
CALC Smart Calculator ±
CALC Smart Calculator ±
Basic « Scientific » Advanced
Free
$5.99 | 100% OFF

Try CALC Smart Calculator ± for a versatile and reliable calculating tool. From basic to advanced functions, it's trusted by scientists, professionals, and students. See why it’s Apple-Featured in Utilities and Calculate categories now!

🔧 Utilities
(2.4K)
11
MathGPT - AI Math Solver
MathGPT - AI Math Solver
MathGPT - AI Math Solver
AI Problem Solver & Calculator
Free

PocketMath is an AI-powered math problem solver that helps you tackle complex equations with ease. Simply input your math problems, and let PocketMath provide step-by-step solutions. Say goodbye to math stress and get instant help today!

📚 Education
(4.9K)
12
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)
13
Calculator with History Tape
Calculator with History Tape
Calculator with History Tape
No Ads Calculator with Memory
Free

Access a user-friendly calculator app with a built-in archive of your calculations for easy reference. Enjoy an ad-free experience with customizable features for seamless calculations. Try it now for straightforward and efficient math operations.

📊 Productivity
(3.2K)
14
Google Chrome
Google Chrome
Google Chrome
Rapide et sécurisé, par Google
Free

A lightning-fast web browser designed for seamless internet browsing across various devices. Experience an efficient and user-friendly way to explore the web – download now for faster browsing!

🔧 Utilities
(3.6M)
15
Digits Tape Calculator
Digits Tape Calculator
Digits Tape Calculator
The calculator for humans
$1.99

Try Digits Tape Calculator, the calculator designed for humans. With a unique correctable tape feature, spreadsheet-like editing, and calculator simplicity, it's perfect for tracking expenses and budgets. Get organized on-the-go with Digits 3 for iOS.

🔧 Utilities
(1.1K)
16
Calculator +ㅤ
Calculator +ㅤ
Calculator +ㅤ
Math, Scientific & Fraction
Free

This application is a comprehensive tool for all types of calculations, ranging from basic math to advanced scientific functions. Try it out now to simplify your calculations and mathematical tasks.

🔧 Utilities
(4.1K)
17
Financial Calculator: Percent
Financial Calculator: Percent
Financial Calculator: Percent
Tax Percentage, Profit Margin
Free

Effortlessly calculate percentages with our user-friendly app. Whether you need to figure out discounts, tips, or percentage increases, our tool makes it simple. Try it now for quick and accurate percentage calculations!

💰 Finance
(14K)
18
MyScript Calculator
MyScript Calculator
MyScript Calculator
Handwriting calculator
$2.99

An innovative handwriting calculator app that allows users to write calculations naturally without a keyboard, offering features like erasing with gestures, drag-and-drop functionality, exporting results, supporting various mathematical operations, and more. Try it now for a unique and interactive calculation experience.

📊 Productivity
(1.4K)
19
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

A color calculator app that helps users find complementary color schemes for design projects. Simply input a base color and let the app generate harmonious color combinations for your projects. Try it now to elevate your design choices!

🔧 Utilities
(15K)
20
BA Financial Calculator
BA Financial Calculator
BA Financial Calculator
BAII Plus Emulator
Free

This app, developed as a BAII Plus emulator, caters to CFA candidates and charterholders, offering identical functionality to the TI calculator with a user-friendly experience. For support, contact cfa.calculator@gmail.com.

💰 Finance
(2.9K)

Looking for something similar to 777 happy calculation?

Explore related topics