Comparison

Number Builder vs Master Math Fun

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Number Builder

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.

Highlights
  • Calculates all possible solutions
  • Supports basic arithmetic
  • Includes powers and roots
  • Input dice rolls and target number
  • Useful for Number Knockout game
Features
Read full description

Number Builder turns dice rolls into a hands-on way to practice mental math. SOLVE MODE Roll three dice, enter a target number, and see every way to combine your dice — using addition, subtraction, multiplication, division, exponents, and roots — to reach it. Great for checking your own work or discovering paths you hadn't thought of. CHALLENGE MODE Roll a set of dice and a target, then build the answer yourself — tapping dice and operators into place, left to right, with instant feedback when you're right. Six levels of difficulty take you from simple addition all the way up to exponents, fractional exponents, and roots, with targets up to 1,000. Challenge mode includes 3 free puzzles to try. After that, it unlocks with a single one-time purchase — no subscriptions, and Family Sharing means one purchase covers your whole family. BUILT FOR PRACTICE Six progressively harder levels, each changing exactly one thing about the challenge Customizable dice colors and styles Full support for larger text sizes and VoiceOver Solve mode stays completely free, no purchase required No data is collected. No ads, ever.

About

Master Math Fun

Features
Read full description

Learn math with your specific settings. Adjust min and max of every available operation. Addition, subtraction, multiplication, division, dice-counting and even candy counting for the youngest! To add to your kid motivation - there is a pet minigame that you as a parent can make available every x correctly solved equations. This is proven itself to be great motivation for kids to keep solving and actually want to learn. Additional settings module enables repetition to happen after wrongly solved equation in order to make problematic ones stick to child memory. Lite version is limited to 15 minutes a day, there is a link to full version within the app, but feel free to use Lite version daily, Repetition is key!

Screenshots

Number Builder4 screens
Master Math Fun4 screens

Verdict

The call

The clearest difference is in-app purchases: Master Math Fun at none against Number Builder's 1. Master Math Fun also leads on update cadence (every 4 days vs every 39 months) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Number Builder sells 1 one-off in-app purchase. Master Math Fun asks for nothing beyond the download.

UpkeepUpdate frequency

Number Builder ships an update every 39 months, Master Math Fun every 4 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Number Builder versus Master Math Fun: the parameters behind the verdict, then further details
ParameterNumber BuilderMaster Math Fun
PriceFreeFree
Rating4.6 (10 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 39 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size4 MB137 MB
Age rating4+4+
DeveloperWidgetilities LLCGrzegorz Kiernozek

In-app purchases

1 purchases

Number Builder

One-time1
  • Unlock Challenge Mode$1.99
None

Master Math Fun

No in-app purchases

Questions

Is Number Builder free?
Number Builder is free to download, with in-app purchases available.
Is Master Math Fun free?
Master Math Fun is free to download, with no in-app purchases.
Do Number Builder or Master Math Fun have ads?
Neither Number Builder nor Master Math Fun shows ads.
Which is updated more often, Number Builder or Master Math Fun?
Number Builder ships an update every 39 months, and Master Math Fun every 4 days. Most recently, Number Builder was updated on November 3, 2026 and Master Math Fun on October 28, 2026.

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