# Partial Product Multiplication vs Rectangles & Primes

The clearest difference is price: Rectangles & Primes at Free against Partial Product Multiplication's $3.99. Rectangles & Primes also leads on update cadence (every 3 weeks vs every 8 months) and iOS requirement (15.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Rectangles & Primes is free to download; Partial Product Multiplication costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Partial Product Multiplication ships an update every 8 months, Rectangles & Primes every 3 weeks. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Partial Product Multiplication | Rectangles & Primes |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/partial-product-multiplication/id351024135/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 1 MB | 10 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Johannes Charra](https://appshunter.io/developer/1557733427) |

## What reviewers say

### Partial Product Multiplication

[App page](https://appshunter.io/ios/app/partial-product-multiplication/id351024135)

This educational tool teaches and reinforces the partial products multiplication method. It offers an intuitive, interactive interface with customizable settings and animations to illustrate step-by-step understanding. Designed to help students grasp multiplication strategies.

**Highlights:** Teaches partial products multiplication method, Interactive and intuitive interface, Customizable colors and settings, Animations for step-by-step understanding, Supports custom and random problems, Adjustable difficulty levels

**Features:** macOS Compatibility

**In-app purchases:** none


### Rectangles & Primes

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Partial Product Multiplication free?

Partial Product Multiplication costs $3.99, with no in-app purchases.

### Is Rectangles & Primes free?

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

### Do Partial Product Multiplication or Rectangles & Primes have ads?

Neither Partial Product Multiplication nor Rectangles & Primes shows ads.

### Which is updated more often, Partial Product Multiplication or Rectangles & Primes?

Partial Product Multiplication ships an update every 8 months, and Rectangles & Primes every 3 weeks. Most recently, Partial Product Multiplication was updated on September 21, 2026 and Rectangles & Primes on September 15, 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.*