Number Builder vs Multiplication Ring
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Calculates all possible solutions
- Supports basic arithmetic
- Includes powers and roots
- Input dice rolls and target number
- Useful for Number Knockout game
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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.
Multiplication Ring
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Introduction The object of this game is to find two green cards in the outer ring that can be multiplied together to equal a blue product card found in the center of the ring. How to Play Choose two green cards and one blue card to create a multiplication equation. When correct, the cards will be cleared and the written equation will appear. If no cards can be played, click the “Replace Corner Cards” and new cards will appear in the four corners. If help is needed, click the help button to see a multiplication table.
Screenshots
Verdict
The clearest difference is price: Number Builder at Free against Multiplication Ring's $1.99. Multiplication Ring's advantage is in-app purchases (none vs 1) and update cadence (every 10 months vs every 39 months). On 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
Number Builder is free to download; Multiplication Ring costs $1.99 up front. Number Builder sells 1 one-off in-app purchase. Multiplication Ring asks for nothing beyond the download.
Number Builder ships an update every 39 months, Multiplication Ring every 10 months. The most recent releases landed on October 3, 2026 and September 26, 2026 respectively.
| Parameter | Number Builder | Multiplication Ring |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.9 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 39 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Widgetilities LLC | Activities for Learning inc. |
In-app purchases
Number Builder
- Unlock Challenge Mode$1.99
Multiplication Ring
No in-app purchases
Questions
Is Number Builder free?
Is Multiplication Ring free?
Do Number Builder or Multiplication Ring have ads?
Which is updated more often, Number Builder or Multiplication Ring?
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