# Number Builder vs Spell It! Spelling for Kids

The clearest difference is price: Number Builder at Free against Spell It! Spelling for Kids's $2.99. Number Builder also leads on ratings volume (10 vs 1). Spell It! Spelling for Kids's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.6). On ads, device support and iOS requirement there is nothing between them.

Number Builder is free to download; Spell It! Spelling for Kids costs $2.99 up front. Number Builder sells 1 one-off in-app purchase. Spell It! Spelling for Kids asks for nothing beyond the download.

Spell It! Spelling for Kids holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Number Builder has 10 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Number Builder | Spell It! Spelling for Kids |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/number-builder-puzzle-solver/id1489526164/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spell-it-spelling-for-kids/id6805722650/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 39 months | — |
| Monetization | **Free** | Paid |
| Size | 4 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Widgetilities LLC](https://appshunter.io/developer/1373578566) | [Skdaddle LLC](https://appshunter.io/developer/6805715121) |

## What reviewers say

### Number Builder

[App page](https://appshunter.io/ios/app/number-builder-puzzle-solver/id1489526164)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Challenge Mode | $1.99 | one-time |


### Spell It! Spelling for Kids

[App page](https://appshunter.io/ios/app/spell-it-spelling-for-kids/id6805722650)

This app offers twelve engaging games designed to make spelling practice fun for children from kindergarten to middle school. It features customizable word lists, progress tracking with positive reinforcement, and a completely private experience with no accounts or ads.

**Highlights:** Twelve unique spelling games, Customizable word lists, Four difficulty levels, Progress tracking with streaks, Kid-friendly clues and sentences, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Number Builder free?

Number Builder is free to download, with in-app purchases available.

### Is Spell It! Spelling for Kids free?

Spell It! Spelling for Kids costs $2.99, with no in-app purchases.

### Which has better reviews, Number Builder or Spell It! Spelling for Kids?

Spell It! Spelling for Kids is rated higher. Number Builder averages 4.6 out of 5 from 10 ratings, while Spell It! Spelling for Kids averages 5.0 from 1 ratings.

### Do Number Builder or Spell It! Spelling for Kids have ads?

Neither Number Builder nor Spell It! Spelling for Kids shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*