# Rectangles & Primes vs Math Tools B

The clearest difference is update cadence: Math Tools B at every 10 days against Rectangles & Primes's every 3 weeks. Math Tools B also leads on iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rectangles & Primes ships an update every 3 weeks, Math Tools B every 10 days. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Rectangles & Primes | Math Tools B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/math-tools-b/id1583421717/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Free |
| Size | 10 MB | 48 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johannes Charra](https://appshunter.io/developer/1557733427) | [Jaron Wakley](https://appshunter.io/developer/1582834657) |

## What reviewers say

### Rectangles & Primes

[App page](https://appshunter.io/ios/app/rectangles-and-primes/id1572074176)

**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 Rectangles & Primes free?

Rectangles & Primes is free to download, with no in-app purchases.

### Is Math Tools B free?

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

### Do Rectangles & Primes or Math Tools B have ads?

Neither Rectangles & Primes nor Math Tools B shows ads.

### Which is updated more often, Rectangles & Primes or Math Tools B?

Rectangles & Primes ships an update every 3 weeks, and Math Tools B every 10 days. Most recently, Rectangles & Primes was updated on October 2, 2026 and Math Tools B on September 30, 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.*