# 23 Equations vs MyDCG

The clearest difference is review sentiment: 23 Equations at 48% against MyDCG's 0%. 23 Equations also leads on update cadence (every 2 weeks vs every 55 months) and iOS requirement (9.3 vs 12.3.0). MyDCG's advantage is in-app purchases (none vs 7). 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. MyDCG asks for nothing beyond the download.

23 Equations ships an update every 2 weeks, MyDCG every 55 months. The most recent releases landed on June 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 23 Equations | MyDCG |
| --- | --- | --- |
| 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** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 55 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 143 MB | 35 MB |
| Requires iOS | **9.3** | 12.3.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nick Whitehurst](https://appshunter.io/developer/1451090126) | [Collabco](https://appshunter.io/developer/844114043) |

## 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 |


### MyDCG

[App page](https://appshunter.io/ios/app/mydcg/id1477172761)

Manage your academic life with this personalized system. Access assignments, timetables, and important updates all in one place. Stay informed about college news, library loans, and your account balances.

**Highlights:** VLE integration for assignments and deadlines, Full timetable access with updates, News and events notifications, Library account management, Light email client access, Print and catering balance checks

**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 MyDCG free?

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

### Do 23 Equations or MyDCG have ads?

Neither 23 Equations nor MyDCG shows ads.

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

23 Equations ships an update every 2 weeks, and MyDCG every 55 months. Most recently, 23 Equations was updated on June 1, 2026 and MyDCG on September 14, 2026.

---

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