# Prime Factorization Factorizer vs Simple Factors

The clearest difference is review sentiment: Simple Factors at 100% against Prime Factorization Factorizer's 50%. Simple Factors also leads on price (Free vs $3.99). Prime Factorization Factorizer's advantage is rating (5.0 vs 3.8) and iOS requirement (11.0 vs 15.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Simple Factors is free to download; Prime Factorization Factorizer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Prime Factorization Factorizer holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews complicate that: 50% of Prime Factorization Factorizer's written reviews are positive against 100% of Simple Factors's, so the app with the better star average is not the one people write more warmly about.

Prime Factorization Factorizer ships an update every 27 months, Simple Factors every 20 months. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Prime Factorization Factorizer | Simple Factors |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prime-factorization-factorizer/id829728229/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/simple-factors/id1084119563/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 20 months** |
| Monetization | Paid | Paid |
| Size | 12 MB | 1 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) | [Joseph Palmer](https://appshunter.io/developer/914507761) |

## What reviewers say

### Prime Factorization Factorizer

[App page](https://appshunter.io/ios/app/prime-factorization-factorizer/id829728229)

This tool helps you find the prime factors of any integer up to 10 digits. It can factor multiple numbers simultaneously and presents results in standard or exponential form. The app also calculates the Greatest Common Factor and Least Common Multiple, storing your calculation history.

**Highlights:** Prime factorization of integers, Factor up to six numbers at once, Standard and exponential forms, Calculates GCF and LCM, Stores calculation history, Send results via email

**Features:** Vision Pro support

**In-app purchases:** none


### Simple Factors

[App page](https://appshunter.io/ios/app/simple-factors/id1084119563)

This app helps users understand numbers by providing their factors and checking for primality or divisibility. It offers a straightforward interface for quick calculations up to 10 trillion.

**Highlights:** Calculates factors of numbers, Checks for primality, Determines divisibility, Supports numbers up to 10 trillion, Simple, menu-free interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Prime Factorization Factorizer free?

Prime Factorization Factorizer costs $3.99, with no in-app purchases.

### Is Simple Factors free?

Simple Factors is free to download, with no in-app purchases.

### Which has better reviews, Prime Factorization Factorizer or Simple Factors?

Prime Factorization Factorizer is rated higher. Prime Factorization Factorizer averages 5.0 out of 5 from 3 ratings, while Simple Factors averages 3.8 from 5 ratings.

### Do Prime Factorization Factorizer or Simple Factors have ads?

Neither Prime Factorization Factorizer nor Simple Factors shows ads.

### Which is updated more often, Prime Factorization Factorizer or Simple Factors?

Prime Factorization Factorizer ships an update every 27 months, and Simple Factors every 20 months. Most recently, Prime Factorization Factorizer was updated on October 4, 2026 and Simple Factors on October 10, 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.*