# 23 Equations vs myCRC

The clearest difference is in-app purchases: myCRC at none against 23 Equations's 7. 23 Equations's advantage is update cadence (every 2 weeks vs every 2 months) and review sentiment (48% vs 33%). On price, ads and device support there is nothing between them.

Both are free to download. 23 Equations sells 7 one-off in-app purchases. myCRC asks for nothing beyond the download.

23 Equations ships an update every 2 weeks, myCRC every 2 months. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 23 Equations | myCRC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/23-equations/id1451090127/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **47.6% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 143 MB | 28 MB |
| Requires iOS | **9.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nick Whitehurst](https://appshunter.io/developer/1451090126) | [Cambridge Regional College](https://appshunter.io/developer/1780999520) |

## What reviewers say

### 23 Equations

[App page](https://appshunter.io/ios/app/23-equations/id1451090127)

Master GCSE and IGCSE Physics equations with interactive learning and practice questions. The app provides instant feedback, model answers, and timed challenges to improve recall and application. Teachers can create and monitor student tests for effective revision planning.

**Highlights:** Learn physics equations by heart, Practice questions with step-by-step help, Model answers for improvement, Timed challenges and games, Teacher-created tests for students, Monitor student progress and answers, Index card-style equation reference

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual: Extra features | $1.99 | one-time |
| School Room, 2022 Exams (S) | $39.99 | one-time |
| School Room, 2023 Exams (S) | $39.99 | one-time |
| School Room, 2022 Exams (M) | $69.99 | one-time |
| School Room, 2023 Exams (M) | $74.99 | one-time |
| School Room, 2022 Exams (L) | $99.99 | one-time |
| School Room, 2023 Exams (L) | $99.99 | one-time |


### myCRC

[App page](https://appshunter.io/ios/app/mycrc/id6738489011)

This app provides a comprehensive student experience for those studying at Cambridge Regional College. Access personalized academic information, college news, event updates, and important notifications. Stay informed about your timetable, attendance, exam results, and available student support services.

**Highlights:** Personalized academic information, College news and events feed, Timetable and attendance tracking, Exam reminders and results, Student support services access, Extracurricular activity awareness

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

**In-app purchases:** none


## Frequently asked questions

### Is 23 Equations free?

23 Equations is free to download, with in-app purchases available.

### Is myCRC free?

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

### Do 23 Equations or myCRC have ads?

Neither 23 Equations nor myCRC shows ads.

### Which is updated more often, 23 Equations or myCRC?

23 Equations ships an update every 2 weeks, and myCRC every 2 months. Most recently, 23 Equations was updated on October 12, 2026 and myCRC on October 9, 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.*