# Prime Factors vs Math Tools B

The clearest difference is price: Math Tools B at Free against Prime Factors's $0.99. Math Tools B also leads on rating (5.0 vs 3.9) and update cadence (every 10 days vs every 21 months). Prime Factors's advantage is ratings volume (24 vs 1). On ads, in-app purchases, monetization model and device support there is nothing between them.

Math Tools B is free to download; Prime Factors costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Math Tools B holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Prime Factors has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 79% of Prime Factors's written reviews are positive against 100% of Math Tools B's.

Prime Factors ships an update every 21 months, Math Tools B every 10 days. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Prime Factors | Math Tools B |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/prime-factors/id741746948/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/math-tools-b/id1583421717/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 78.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 1 MB | 48 MB |
| Requires iOS | 18.0 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hangas](https://appshunter.io/developer/433121902) | [Jaron Wakley](https://appshunter.io/developer/1582834657) |

## What reviewers say

### Prime Factors

[App page](https://appshunter.io/ios/app/prime-factors/id741746948)

Explore numbers up to one trillion, with primes clearly marked. Tap any number to reveal its prime factors. Easily navigate to specific numbers using the search function and adjust the display with pinch-to-zoom gestures.

**Highlights:** View numbers up to 1 trillion, Prime numbers highlighted, Tap for prime factors, Search for specific numbers, Pinch and zoom display

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Tools B

[App page](https://appshunter.io/ios/app/math-tools-b/id1583421717)

This app helps users understand mathematical concepts and perform various numerical tasks. It offers features like factoring, prime factorization, fraction simplification, and random number generation, all computed locally for speed.

**Highlights:** Factoring, Prime Factorization, Greatest Common Divisor, Decimal to Fraction Conversion, Fraction Simplification, Fraction Arithmetic, Random Number Generation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prime Factors free?

Prime Factors costs $0.99, with no in-app purchases.

### Is Math Tools B free?

Math Tools B is free to download, with no in-app purchases.

### Which has better reviews, Prime Factors or Math Tools B?

Math Tools B is rated higher. Prime Factors averages 3.9 out of 5 from 24 ratings, while Math Tools B averages 5.0 from 1 ratings.

### Do Prime Factors or Math Tools B have ads?

Neither Prime Factors nor Math Tools B shows ads.

### Which is updated more often, Prime Factors or Math Tools B?

Prime Factors ships an update every 21 months, and Math Tools B every 10 days. Most recently, Prime Factors was updated on October 18, 2026 and Math Tools B on October 16, 2026.

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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.*