# Prime Checker vs A level Maths Revision OCR Lite

The clearest difference is in-app purchases: Prime Checker at none against A level Maths Revision OCR Lite's 1. A level Maths Revision OCR Lite's advantage is update cadence (every 3 months vs every 17 months) and iOS requirement (8.0 vs 12.4). On price and device support there is nothing between them.

Both are free to download. A level Maths Revision OCR Lite sells 1 one-off in-app purchase. Prime Checker asks for nothing beyond the download.

Prime Checker ships an update every 17 months, A level Maths Revision OCR Lite every 3 months. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Prime Checker | A level Maths Revision OCR Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prime-checker/id389112910/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 95.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 17 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 3 MB | 42 MB |
| Requires iOS | 12.4 | **8.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heart Solutions, Inc.](https://appshunter.io/developer/389112913) | [Sangeetha Bhatta](https://appshunter.io/developer/531612854) |

## What reviewers say

### Prime Checker

[App page](https://appshunter.io/ios/app/prime-checker/id389112910)

This app performs advanced mathematical calculations for numbers, including integer factorization, Euler's totient function, and solving specific Diophantine equations. It utilizes advanced algorithms for factorization and primality testing.

**Highlights:** Integer factorization, Euler's totient function, Primitive root calculation, Diophantine equation solver, Primality testing

**Features:** macOS Compatibility

**In-app purchases:** none


### A level Maths Revision OCR Lite

[App page](https://appshunter.io/ios/app/a-level-maths-revision-ocr-lite/id1024389193)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is Prime Checker free?

Prime Checker is free to download, with no in-app purchases.

### Is A level Maths Revision OCR Lite free?

A level Maths Revision OCR Lite is free to download, with in-app purchases available.

### Which is updated more often, Prime Checker or A level Maths Revision OCR Lite?

Prime Checker ships an update every 17 months, and A level Maths Revision OCR Lite every 3 months. Most recently, Prime Checker was updated on September 29, 2026 and A level Maths Revision OCR Lite on October 10, 2026.

---

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