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Number Builder - Puzzle Solver

Number Builder - Puzzle Solver

Solve Dice Math Problems

10 ratings
5 reviews
📚 Education
🔧 Utilities
Free
In-App Purchases

Details

Released
February 19, 2020
Updated
July 27, 2026

Features

Developer

Widgetilities LLC
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iphone
ipad
🧾$1.99
In-App Purchase↘︎
⭐5
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦~ in 3 years
Updates frequency↘︎
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About

This app helps solve math puzzles by calculating all possible equations from dice rolls and a target number. It supports basic arithmetic, powers, and roots, making it a useful tool for games like Number Knockout.

✓Calculates all possible solutions
✓Supports basic arithmetic
✓Includes powers and roots
✓Input dice rolls and target number
✓Useful for Number Knockout game
Show original description

What's New in Number Builder

2.0

July 27, 2026

Number Builder 2.0 is a ground-up rewrite with a brand new mode: NEW: Challenge mode — roll dice and a target, then build your own answer across six levels of difficulty, from simple sums to exponents and roots NEW: Customize your dice — pick a color theme and rendering style that fits you Improved support for larger text sizes and VoiceOver throughout A cleaner, redesigned look across every screen Thanks for practicing with us — we'd love to hear what you think!

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Subscriptions & In-App Purchases

$1.99

Unlock Challenge Mode

Unlock unlimited puzzles in Challenge mode

User reviews

Most RecentHighest RatedLowest Rated

Review of Number Builder

I love number builder but I wish that you could do challenges without having to pay. Other that that, it is awesome!
AAdkgal

Okay

It really helps with my math but it doesn’t let me do challenge mode so it doesn’t really help that much 😑.
TTyneedancer1

Helpful Resource

This app is easy to use and very helpful when teaching the N2K game.
MMaggie2938a

Perfect!

Perfect for the National Number Knockout/board slam enthusiast! Thanks so much for creating it!
TThis.Is.Michelle

CC mom

App is very easy to use. I love it! Perfect for number knockout game. Thank you!
AAmeeCaesar

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FAQ

What math operations does Number Builder support?

Number Builder supports basic arithmetic operations including addition (+), subtraction (-), multiplication (x), and division (÷). It also includes support for powers and roots for more advanced calculations.

Is Number Builder a game itself?

No, Number Builder is a tool to help find solutions for math puzzles, particularly those used in games like Number Knockout. It does not contain the game itself.

Who would find Number Builder most useful?

This app is super handy for teachers and parents to help kids who are stuck trying to find a particular solution in dice-based math games. Students can also use it to check their work or find new ways to solve problems.

What information do I need to input into Number Builder?

You need to enter the numbers from your dice roll and the specific number you are trying to reach with an equation. The app will then calculate all possible solutions.

Does Number Builder have ads?

No, Number Builder does not contain advertisements. It is a completely ad-free experience for users.

What devices is Number Builder available on?

Number Builder is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

How often is Number Builder updated?

Number Builder was last updated on February 21, 2020, with version 1.0.4. While updates have not been frequent recently, the app is stable and functional.

What is the age rating for Number Builder?

Number Builder has an age rating of 4+, making it suitable for young children and up. This indicates it contains no mature content.