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Number Line

Number Line

Learn to round, add, subtract

4 ratings
2 reviews
📚 Education
🔧 Utilities
Free

Details

  • Released
  • Updated
  • October 17, 2020
  • December 29, 2025

Developer

Blastoff Design
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Number Line video #1 for iPhone
Number Line screenshot #2 for iPhone
iphone
ipad
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About

This app provides an interactive number line for educational purposes, enabling users to visualize numbers, perform various math games, and practice rounding. Its simple interface supports zooming, swiping, and marking numbers with pins or freehand drawing.

✓Infinite number line visualization
✓Rounding practice (nearest 10, 100, 10,000)
✓Number comparison
✓Pinch-to-zoom functionality
✓Swipe navigation
✓Search for specific numbers
✓Pin marking
✓Freehand drawing tool
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What's New in Number Line

0.3.0

December 29, 2025

Drawing, search box, regional formatting, and bigger numbers! Tell us what you'd like to see next: numberline@blastoff.design

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User reviews

Most RecentHighest RatedLowest Rated

Intuitive

This is an excellent teaching tool. I’m a math tutor, and it’s definitely one of my more often used apps. I do wish I could make the number line vertical though. I can imitate it by rotating my iPad, but that makes the numbers harder to read, and some of my students are dyslexic. Also, if there were an option to pay a couple of dollars to get an add-free version I would. The ads aren’t too intrusive, but I’d be happy to support the developers and get a cleaner version.
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jennythefurrrjennythefurrr

Simple and intuitive

This will be a great app for teaching my young child about numbers. It’s simple and easy to use. Thank you for making it!
KalielleKalielle

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FAQ

What is the learning methodology of Number Line?

Number Line utilizes a visual and interactive approach to learning. It allows users to explore number relationships, practice rounding to various place values, and engage in math games directly on an infinite number line.

How does Number Line track user progress?

The current description does not specify built-in progress tracking features. However, educators can use the interactive tools like pins and drawing to assess student understanding during activities.

Does Number Line offer any certifications?

Number Line is an educational tool designed for practice and visualization, and it does not offer formal certifications upon completion of any modules.

What devices is Number Line compatible with?

Number Line is available for iPhone, iPad, and iPod devices, supporting a wide range of iOS users.

What is the age rating for Number Line?

Number Line has an age rating of 4+, making it suitable for young children and early learners.

How often is Number Line updated?

The latest version is 0.3.0, and the app was last updated on December 29, 2025. Specific update frequency is not detailed, but this indicates recent development.

Does Number Line have ads?

No, Number Line is ad-free, providing an uninterrupted learning experience for users.

What do users like most about Number Line?

Based on the limited ratings, users appreciate its simple design and the numerous math games and challenges it enables, as well as its utility in the classroom.