Best Decimal Rounding Apps

187+ iOS apps curated and reviewed

4.0 avg rating
17 free apps
Updated May 2026

Out of 187+ decimal rounding apps on iOS, 17 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 Decimal Rounding

Rounding-#1

Rounding- by Horizon Business, Inc.

Editor's Choice
📚 Education
4.0(79 ratings)
FreeAdsIn-App Purchases
Rounding- screenshot 1
Rounding- screenshot 2
Rounding- screenshot 3
Rounding- screenshot 4
Rounding- screenshot 5
Rounding- screenshot 6

Test your rounding skills with this fun and interactive game, selecting from various options in the settings screen. Master the game by playing with whole numbers, decimals, and multiple place values, and show your support by giving it a rating.

Rounding Calculator#3

Rounding Calculator by talha rehman

Rounding Numbers Calculator.
Worth Considering
📚 Education
4.6(7 ratings)
FreeAdsIn-App Purchases
Rounding Calculator screenshot 1
Rounding Calculator screenshot 2
Rounding Calculator screenshot 3

This application is a simple and useful tool that enables you to quickly round up large numbers to the nearest whole number, decimal numbers, or any equation, making it ideal for math students and teachers. With its easy-to-use interface, you can simply input the numbers, choose the rounding value, and get the accurate solution in no time, saving you time and effort.

More Decimal Rounding apps to explore

4
Fraction Calculator Plus #1
Fraction Calculator Plus #1
Fraction Calculator Plus #1
Decimal to Fractions Converter
Free

This application is a powerful tool for calculating fractions with ease, providing users with a handy way to perform fraction-related calculations quickly and efficiently. Simplify your math tasks and crunch numbers effortlessly with this handy fraction calculator app.

📊 Productivity
(22K)
5
Tiny Human Rounding
Tiny Human Rounding
Tiny Human Rounding
Decimal and Whole #s 0 - 9,999
$0.99

This interactive tool helps students practice rounding numbers to various levels, including nearest ones, tens, hundreds, thousands, and whole numbers, with options for extra support and tracking progress. Try it out and help your students master rounding skills with its customizable gameplay and progress monitoring features.

📚 Education
(3)
6
Fraction Calculator
Fraction Calculator
Fraction Calculator
Decimal Plus Units Converter
Free

This ad-free fraction calculator offers an award-winning tool for accurately performing calculations involving feet, inches, and fractions. Simplify your math tasks with precision and efficiency.

📊 Productivity
(90)
7
Bill Splitter - Pay Tip for Waiter and Waitress
Bill Splitter - Pay Tip for Waiter and Waitress
Bill Splitter - Pay Tip for Waiter and Waitress
by Nattapon Kittisuphat
Free

This application helps users split bills and calculate tips easily with friends, family, or others. It offers a simple and user-friendly way to divide expenses, calculate tips by percentage, and support multiple international currencies.

🍔 Food & Drink
(2)
8
Rounding Numbers School
Rounding Numbers School
Rounding Numbers School
by Horizon Business, Inc.
$4.99
📚 Education
(1)
9
Math Rescue: 7-9 Year Old Game
Math Rescue: 7-9 Year Old Game
Math Rescue: 7-9 Year Old Game
Boys & Girl Educational Games
Free

"Engage your 7-9 year old with Math Rescue - an educational game that makes learning math fun! Foster numeracy skills through interactive gameplay. Download now and watch them excel in math."

📚 Education
(2.4K)
10
Binary Decimal Converter
Binary Decimal Converter
Binary Decimal Converter
by Satish Boggarapu
Free

This application allows users to easily convert numbers between Binary, Decimal, Hexadecimal, and Octal number systems. Download now and start converting numbers with just a few taps!

📚 Education
(68)
11
Decimals to Fractions
Decimals to Fractions
Decimals to Fractions
Convert Decimals to Fractions
$1.99

This application quickly and accurately converts decimals to fractions and vice versa, with a simple and easy-to-use interface. It also offers a percent calculator feature and works offline, allowing users to perform calculations without an internet connection.

📚 Education
(11)
12
iFraction Calculator
iFraction Calculator
iFraction Calculator
Calculator for fraction number
Free

iFraction is a powerful fraction calculator app that helps with everyday fraction math problems, featuring step-by-step equation explanations, decimal and fraction calculations, large number support, and previous calculation storage. Ideal for students, woodworkers, constructors, and anyone needing fast and accurate fraction calculations on their Apple devices. Turn your iPhone, iPod, or iPad into a versatile calculator with iFraction.

📊 Productivity
(1.6K)
13
Number Line
Number Line
Number Line
by Todd Bowden
Free

Explore Number Line, a dynamic educational app that helps users visualize number concepts through an interactive interface. Enhance your understanding of mathematics with this user-friendly tool.

📚 Education
(665)
14
Fraction Basics & Decimals
Fraction Basics & Decimals
Fraction Basics & Decimals
Zapzapmath Home Math Fractions
Free

This video app teaches core concepts of fractions through 12 animated videos, covering topics from understanding fractions to converting fractions to decimals and percents. Unlock all video content with an All Access Pass and build a strong foundation in fractions, exploring topics like equivalent fractions, adding and subtracting fractions, and more.

📚 Education
(10)
15
Decimal (.)
Decimal (.)
Decimal (.)
Decimal Converter
Free
$0.99 | 100% OFF
🔧 Utilities
(0)
16
Decimal Time Converter
Decimal Time Converter
Decimal Time Converter
by CodeBurners
Free

This application quickly and easily converts hours and minutes to decimals, and vice versa, using a simple and intuitive interface with slot machine style spinners. It's perfect for anyone who needs to bill for their time or make instant conversions, allowing users to input values in various formats and see results displayed instantly.

🔧 Utilities
(4)
17
Fraction Calculator + Decimals
Fraction Calculator + Decimals
Fraction Calculator + Decimals
Includes Decimals to Fractions
Free

Introducing a versatile Fraction Calculator app with features like reducing fractions, converting decimals to fractions, and more. Simplify everyday math problems with ease and precision. Check it out at www.zapzapmath.com for a seamless math experience.

📊 Productivity
(293)
18
Binary to Decimal to Hexadecimal Converter
Binary to Decimal to Hexadecimal Converter
Binary to Decimal to Hexadecimal Converter
by Aldiyar Ablyazov
Free
📚 Education
(10)
19
Fraction Calculator-Decimal RA
Fraction Calculator-Decimal RA
Fraction Calculator-Decimal RA
Fraction Calculator & Tutor
Free
🔧 Utilities
(13)
20
Fraction Help
Fraction Help
Fraction Help
Calculator + Working
Free

This educational tool and calculator makes solving and learning fractions easy by accurately solving equations and providing detailed working. It allows users to work with mixed and partial fractions, convert between decimal and fractional values, and find factors, with some features available through a simple in-app purchase.

🔧 Utilities
(199)