# 23 Equations vs My Past Papers The clearest difference is in-app purchases: My Past Papers at none against 23 Equations's 7. My Past Papers also leads on review sentiment (75% vs 48%) and ratings volume (24 vs 1). 23 Equations's advantage is iOS requirement (9.3 vs 16.4). On price, rating, ads and device support there is nothing between them. Both are free to download. 23 Equations sells 7 one-off in-app purchases. My Past Papers asks for nothing beyond the download. On the App Store both sit at effectively the same score — 5.0 for 23 Equations against 4.9 for My Past Papers. That said, the two scores are not equally well evidenced: My Past Papers has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 48% of 23 Equations's written reviews are positive against 75% of My Past Papers's. 23 Equations ships an update every 2 weeks, My Past Papers every 6 days. The most recent releases landed on October 12, 2026 and October 29, 2026 respectively. ## The numbers | Metric | 23 Equations | My Past Papers | | --- | --- | --- | | Price | Free | Free | | Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/23-equations/id1451090127/reviews)** | [4.9 (24 ratings)](https://appshunter.io/ios/app/my-past-papers/id1492995959/reviews) | | Number of ratings | 1 | **24** | | Positive reviews | 47.6% of reviews | **74.7% of reviews** | | In-app purchases | Yes | **No** | | Ads | No | No | | Update frequency | Every 2 weeks | **Every 6 days** | | Monetization | Free with in-app purchases | **Free** | | Size | 143 MB | 73 MB | | Requires iOS | **9.3** | 16.4 | | Devices | **iPhone, iPad, iPod** | iPhone, iPad | | Age rating | 4+ | 4+ | | Developer | [Nick Whitehurst](https://appshunter.io/developer/1451090126) | [C-Squared Development](https://appshunter.io/developer/1492995958) | ## 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 | ### My Past Papers [App page](https://appshunter.io/ios/app/my-past-papers/id1492995959) Access a comprehensive library of past exam papers, mark schemes, and examiner reports for GCSE, iGCSE, A-Level, and more. Organize your subjects for targeted revision and practice with materials from various UK and international exam boards. **Highlights:** Vast library of past papers, Mark schemes and examiner reports, Personalized subject dashboard, Support for multiple exam boards, Targeted revision tools, Downloadable resources **Features:** macOS Compatibility, Vision Pro support **In-app purchases:** none **What reviewers like** - 🌟 Comprehensive past papers - 🆓 Free to use, no ads - 👍 Easy to use interface - 📚 Great for revision and practice - 🖨️ Option to print papers **What reviewers complain about** - ⚠️ Some papers don't load - 📉 Limited content for some subjects/boards - ⏳ Slow loading times - ❓ Difficulty checking answers - 🎛️ Navigation can be awkward **Reported bugs** - Papers not loading - App crashes or freezes - Unable to leave papers - Nat 5 History papers disappeared - Downloaded papers not opening within the app **Requested features** - Annotation feature to write on papers - Mark schemes at the end of papers - Option to save papers as files - Sorted topic questions - More recent papers (e.g., 2023) ## Frequently asked questions ### Is 23 Equations free? 23 Equations is free to download, with in-app purchases available. ### Is My Past Papers free? My Past Papers is free to download, with no in-app purchases. ### Which has better reviews, 23 Equations or My Past Papers? 23 Equations is rated higher. 23 Equations averages 5.0 out of 5 from 1 ratings, while My Past Papers averages 4.9 from 24 ratings. ### Do 23 Equations or My Past Papers have ads? Neither 23 Equations nor My Past Papers shows ads. ### Which is updated more often, 23 Equations or My Past Papers? 23 Equations ships an update every 2 weeks, and My Past Papers every 6 days. Most recently, 23 Equations was updated on October 12, 2026 and My Past Papers on October 29, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*