Best H2Calcs Apps

198+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated May 2026

The best h2calcs apps on iPhone average 4.7★ across 198+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for H2Calcs

H2Calcs#1

H2Calcs by Mingxuan Fan

Calcs and Facts for Hydrogen
Editor's Choice
📊 Productivity
5.0(1 ratings)
Free
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This app provides essential calculations and quick facts related to hydrogen applications. It includes tools for fueling time, vessel capacity, and energy conversion, alongside information on fuel properties and hydrogen colors.

Calculator₊#2

Calculator₊ by Impala Studios B.V.

Basic, Scientific, Plus Calc
Strong Contender
🔧 Utilities
4.7😞(1.7M ratings)
FreeAdsIn-App Purchases
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This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

What We Love

  • 💻 Useful calculator features
  • 🎨 Customizable backgrounds and themes
  • 📚 Helpful history tracking

Room to Improve

  • 📺 Intrusive full-screen ads
  • 💰 Expensive subscription model
  • 🔍 Ads blocking calculator functionality
Math Problems 1st - 12th Grade#3

Math Problems 1st - 12th Grade by Adam Drzewiecki

Learn basic & high school math
Worth Considering
📚 Education
4.7😊(11K ratings)
FreeAdsIn-App Purchases
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This app offers a comprehensive math learning experience for all ages, from preschoolers to university students. It provides step-by-step solutions for basic arithmetic and more advanced problems, helping users build math skills through practice and engaging games.

What We Love

  • 🚀 Excellent learning tool
  • 👍 Fun and engaging
  • 🤓 Helps improve math skills
  • 💡 Wide range of math topics covered

Room to Improve

  • 🔍 Lack of detailed explanations
  • 🛑 Too many ads
  • 💰 Premium features not worth the cost

More H2Calcs apps to explore

4
Basic Calculator+
Basic Calculator+
Basic Calculator+
Basic Four Function Calculator
Free

Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.

Basic four functionsClear displayLarge buttons
🔧 Utilities
(243K)
free with in-app purchases
5
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
Free

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

Free basic and scientific calculatorIntuitive interface with equation and result displayFraction and percent support
🔧 Utilities
(9.6K)
free with in-app purchases
6
Monster Math 2: Kids Math Game
Monster Math 2: Kids Math Game
Monster Math 2: Kids Math Game
Facts Fluency Made Fun For K-5
Free

This app makes learning math skills fun for children in kindergarten through fifth grade. It covers a wide range of topics from basic geometry to fractions and decimals through an engaging adventure game. Detailed reports help parents track their child's progress and identify areas for improvement.

Practice 67+ math skillsGeometry, addition, subtraction, multiplication, divisionFractions and decimals
📚 Education
(6.4K)
free with in-app purchases
7
MathMaster: Math Solver & Help
MathMaster: Math Solver & Help
MathMaster: Math Solver & Help
Homework Helper & AI Tutor
Free

Solve math problems instantly by taking a photo or entering an equation. Get step-by-step solutions to understand the process and improve your math skills. Covers a wide range of topics from basic arithmetic to calculus.

Camera-based problem solvingStep-by-step solutionsHandwritten and printed math recognition
📚 Education
(12K)
free with in-app purchases
8
IXL - Math, English, & More
IXL - Math, English, & More
IXL - Math, English, & More
Interactive K-12 Learning App
Free

Personalized learning for K-12 students across math, English, science, social studies, and Spanish. Offers adaptive practice, immediate feedback, and engaging games to accelerate achievement and build confidence.

Personalized K-12 curriculumAdaptive skill-buildingImmediate feedback and explanations
📚 Education
(200K)
free with in-app purchases
9
Question.AI-Math Calculator
Question.AI-Math Calculator
Question.AI-Math Calculator
Scan&Solve All Subject Problem
Free

This AI chatbot app provides instant answers to your questions, acts as a personal assistant for research, translates over 140 languages, and offers intelligent writing suggestions. It's designed to simplify information gathering and enhance communication for students, professionals, and anyone seeking knowledge.

Instant AI-powered answersPersonalized research assistant140+ language translation
📚 Education
(159K)
free with in-app purchases
10
Desmos Scientific Calculator
Desmos Scientific Calculator
Desmos Scientific Calculator
by Desmos, Inc.
Free

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

Basic arithmetic operationsTrigonometric functionsStatistical calculations
📚 Education
(327)
free
11
MDCalc Medical Calculator
MDCalc Medical Calculator
MDCalc Medical Calculator
Clinical Decision Support
Free

This app provides over 900 evidence-based medical calculators, risk scores, and clinical tools for healthcare professionals. It offers offline functionality, expert insights, and CME tracking to support patient care at the bedside. Tools are developed and validated by board-certified physicians.

900+ evidence-based calculatorsOffline functionalityExpert insights and commentary
🏥 Medical
(51K)
free
12
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Calculator Air: AI Math Solver
Basic, Scientific & Photo Math
Free

Solve math problems instantly with a powerful AI-driven calculator. Features include basic and scientific calculations, a photo math solver, and an AI homework helper for step-by-step explanations. Ideal for students and professionals needing quick, accurate math solutions.

Basic and scientific calculatorPhoto math solverAI homework helper
🔧 Utilities
(81K)
subscription
13
Khan Academy
Khan Academy
Khan Academy
You can learn anything
Free

Access a vast library of free educational content, including interactive exercises, videos, and articles. Master subjects from math and science to humanities and finance at your own pace, with offline access and personalized learning paths.

Thousands of interactive exercises, videos, and articlesStudy math, science, economics, finance, grammar, history, and morePractice exercises with instant feedback and hints
📚 Education
(103K)
free
14
MathGPT - AI Math Solver
MathGPT - AI Math Solver
MathGPT - AI Math Solver
AI Problem Solver & Calculator
Free

Instantly solve math problems by taking a photo. Get step-by-step explanations, AI-animated videos, and interactive graphs to understand complex concepts. This AI-powered homework helper covers various subjects beyond math.

Photo-based problem solvingStep-by-step explanationsAI-animated math videos
📚 Education
(4.9K)
free with in-app purchases
15
Calculate84
Calculate84
Calculate84
Intended for use with TI-84
Free

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.

Fast, interactive touch-screen graphingScrollable windowsIntelligent error messages
📚 Education
(52K)
free with in-app purchases
16
Calculator for iPad₊
Calculator for iPad₊
Calculator for iPad₊
Basic, Scientific, Plus Calc
Free

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Basic & Scientific CalculatorAdvanced Scientific FunctionsLive Currency Converter
🔧 Utilities
(126K)
free with in-app purchases
17
Calculator HD Pro Lite
Calculator HD Pro Lite
Calculator HD Pro Lite
Basic & Scientific Calc
Free

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

Dual-line displayCalculation historyFull scientific functions
🔧 Utilities
(51K)
ad-supported
18
Math AI Homework Helper,Solver
Math AI Homework Helper,Solver
Math AI Homework Helper,Solver
Algebra calculator free of ads
Free

This app provides instant, step-by-step solutions for a wide range of math problems, from basic arithmetic to calculus. Users can scan math problems with their camera and receive detailed explanations, multiple solving methods, and graphing tools. It's designed to help students understand and solve challenging math questions quickly.

Scan math problems with cameraStep-by-step explanationsGraphing calculator
📚 Education
(30K)
free with in-app purchases
19
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
💰 Finance
(23K)
free with in-app purchases
20
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Basic & Scientific CalculatorLive Currency ConverterHistory Tape
🔧 Utilities
(357K)
free with in-app purchases