# 23 Equations vs Physics Solver AI The clearest difference is rating: 23 Equations at 5.0 against Physics Solver AI's 4.5. 23 Equations also leads on review sentiment (48% vs 20%) and iOS requirement (9.3 vs 13.0). Physics Solver AI's advantage is ratings volume (136 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them. Both are free to download. 23 Equations sells 7 one-off in-app purchases and Physics Solver AI sells 5 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters. 23 Equations holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Physics Solver AI has 136 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 48% of 23 Equations's written reviews are positive against 20% of Physics Solver AI's. 23 Equations ships an update every 2 weeks, Physics Solver AI monthly. The most recent releases landed on September 26, 2026 and October 14, 2026 respectively. ## The numbers | Metric | 23 Equations | Physics Solver AI | | --- | --- | --- | | Price | Free | Free | | Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/23-equations/id1451090127/reviews)** | [4.5 (136 ratings)](https://appshunter.io/ios/app/physics-solver-ai/id6736621573/reviews) | | Number of ratings | 1 | **136** | | Positive reviews | **47.6% of reviews** | 20.0% of reviews | | In-app purchases | Yes | Yes | | Ads | No | No | | Update frequency | **Every 2 weeks** | Monthly | | Monetization | Free with in-app purchases | Free with in-app purchases | | Size | 143 MB | 87 MB | | Requires iOS | **9.3** | 13.0 | | Devices | iPhone, iPad, iPod | iPhone, iPad, iPod | | Age rating | 4+ | 4+ | | Developer | [Nick Whitehurst](https://appshunter.io/developer/1451090126) | [NEXTLINE YAZILIM LİMİTED ŞİRKETİ](https://appshunter.io/developer/1795648837) | ## 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 | ### Physics Solver AI [App page](https://appshunter.io/ios/app/physics-solver-ai/id6736621573) This app provides instant, accurate solutions and detailed step-by-step explanations for physics problems across various branches. It acts as a personal tutor, helping students understand complex concepts through interactive learning and personalized guidance, available 24/7. **Highlights:** Physics problem solving, Detailed step-by-step solutions, Instant answers via photo, Interactive learning, 24/7 availability, Covers mechanics, electromagnetism, and more **Features:** macOS Compatibility, Vision Pro support **In-app purchases (5)** | Purchase | Price | Billing | | --- | --- | --- | | Physics AI Premium | $5.99 | per 7 days | | Physics Solver Premium | $9.99 | per year | | Physics AI Premium | $19.99 | per month | | 6 Month Premium Discounted | $29.99 | per 6 months | | Physics AI Premium | $59.99 | per 6 months | ## Frequently asked questions ### Is 23 Equations free? 23 Equations is free to download, with in-app purchases available. ### Is Physics Solver AI free? Physics Solver AI is free to download, with in-app purchases available. ### Which has better reviews, 23 Equations or Physics Solver AI? 23 Equations is rated higher. 23 Equations averages 5.0 out of 5 from 1 ratings, while Physics Solver AI averages 4.5 from 136 ratings. ### Do 23 Equations or Physics Solver AI have ads? Neither 23 Equations nor Physics Solver AI shows ads. ### Which is updated more often, 23 Equations or Physics Solver AI? 23 Equations ships an update every 2 weeks, and Physics Solver AI monthly. Most recently, 23 Equations was updated on September 26, 2026 and Physics Solver AI on October 14, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*