Best Cheolchan Um Apps

211+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated April 2026

Out of 211+ cheolchan um apps on iOS, 20 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 Cheolchan Um

This is Calculator#1

This is Calculator by Cheolchan Um

Basic calculator without ads
Editor's Choice
📊 Productivity
4.4(14 ratings)
Free
This is Calculator screenshot 1
This is Calculator screenshot 2
This is Calculator screenshot 3

This basic calculator offers a simple layout and ad-free experience, allowing users to make quick calculations and keep a history of their results with optional notes. Try it out to perform calculations and save your results for future reference.

Calculator₊#2

Calculator₊ by Impala Studios B.V.

Basic, Scientific, Plus Calc
Strong Contender
🔧 Utilities
4.7😞(1.7M ratings)
FreeAdsIn-App Purchases
Calculator₊ screenshot 1
Calculator₊ screenshot 2
Calculator₊ screenshot 3
Calculator₊ screenshot 4
Calculator₊ screenshot 5
Calculator₊ screenshot 6

Try Calculator₊, the ultimate mathematics tool offering basic, scientific, and plus calculations. Ideal for homework, exams, and managing expenses, this app is like having a personal math tutor on your phone. Download now for easy and intuitive math solutions!

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
Basic Calculator+#3

Basic Calculator+ by Best Free Apps

Basic Four Function Calculator
Worth Considering
🔧 Utilities
4.9😊(243K ratings)
FreeAds
Basic Calculator+ screenshot 1
Basic Calculator+ screenshot 2

A user-friendly basic four-function calculator with a clear display and large buttons for easy calculations, available on both portrait and landscape modes. Download now for a straightforward and efficient way to handle your math tasks!

What We Love

  • 👍 Easy to use
  • 👍 Large, clear buttons
  • 👍 Straightforward, basic functionality
  • 👍 No ads or in-app purchases

Room to Improve

  • 🐛 Inconsistent click volume
  • 🐛 Ads can be intrusive or disruptive
  • 🐛 Missing backspace/delete function

More Cheolchan Um apps to explore

4
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

Experience a beautifully designed calculator with large buttons and a clear display for quick and efficient calculations. Try it now to discover the simplicity and ease of use for your everyday arithmetic needs.

🔧 Utilities
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5
Photomath
Photomath
Photomath
Learn math, step-by-step
Free

Photomath helps learners understand math step by step with accurate solutions, explanations, and various methods. Scan math problems to untangle complexities, access step-by-step explanations, expert-developed methods, word problem instructions, interactive graphs, video learning, and an advanced scientific calculator. Dive deeper with Photomath Plus for custom tutorials and textbook solutions.

📚 Education
(733K)
6
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Taculator 84 Graphing Calc
Statistics, Matrix + Graph
Free

Get advanced math functions, statistics, matrices, and graphing capabilities with this all-in-one calculator app designed for high school and college students. Perfect for mastering pre-algebra, algebra, and more. Download now for a smarter way to calculate and visualize data.

📚 Education
(7.5K)
7
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
Free

Experience the award-winning calculator app for iPad and iPhone, offering a free basic and scientific calculator with an elegant design, simple usability, and beautiful interface. Calculate with ease and precision today!

🔧 Utilities
(9.6K)
8
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

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

🔧 Utilities
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9
MathMaster: Math Solver & Help
MathMaster: Math Solver & Help
MathMaster: Math Solver & Help
Homework Helper & AI Tutor
Free

An advanced math problem-solving app that helps users solve complex mathematical equations effortlessly. Take the challenge out of math with our intuitive and powerful solution. Try it now for easy solutions to your toughest math problems.

📚 Education
(12K)
10
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

A calculator app with a built-in history feature that keeps track of your calculations without any ads. Calculate effortlessly and access your past computations instantly.

💰 Finance
(23K)
11
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)
12
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)
13
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
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14
Calculator# Hide Photos Videos
Calculator# Hide Photos Videos
Calculator# Hide Photos Videos
Hide Photos, Videos & Secrets
Free

A versatile calculator app that offers a wide range of functions including basic arithmetic, scientific calculations, and currency conversion. Download now for all your mathematical needs!

🔧 Utilities
(29K)
15
Calculator X: Math for iPad
Calculator X: Math for iPad
Calculator X: Math for iPad
Smart History, Plus Scientific
Free

Enhance your productivity with a free calculator app for iPad, iPhone, and Apple Watch. Download now to enjoy advanced features and join a community of satisfied users.

💰 Finance
(6.2K)
16
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)
17
Calculator 3.0
Calculator 3.0
Calculator 3.0
Calculations Simplified
Free

A versatile and user-friendly calculator application for Apple devices, featuring themes, haptic feedback, tip calculation, unit conversion, and more. Simplify your calculations with Calculator 3.0 - available now for free on Apple Watch, iPhone, iPad, and iMessage!

🔧 Utilities
(3.5K)
18
Calculator #
Calculator #
Calculator #
Scientific Calculator
Free

Calculate complex mathematical equations effortlessly with this intuitive app. Simplify your calculations on the go with advanced features like graph plotting and equation solving. Download now to supercharge your math skills!

🔧 Utilities
(36K)
19
Math AI Homework Helper,Solver
Math AI Homework Helper,Solver
Math AI Homework Helper,Solver
Algebra calculator free of ads
Free

Get instant step-by-step math problem solutions with this ad-free app. Stop struggling and download now for free!

📚 Education
(30K)
20
Calculator - Free Calculator
Calculator - Free Calculator
Calculator - Free Calculator
by 祥祎 刘
Free

Calculator - Free Calculator is a versatile and user-friendly app designed for iPad. Perform a wide range of calculations effortlessly with its optimized features. Download now to streamline your calculations on the go!

🔧 Utilities
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