# Physics Answers vs Mastering Physics

The clearest difference is in-app purchases: Mastering Physics at none against Physics Answers's 2. Physics Answers's advantage is update cadence (every 3 months vs every 12 months) and iOS requirement (11.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Physics Answers sells 2 in-app purchases, starting at $9.99 per month. Mastering Physics asks for nothing beyond the download.

Physics Answers ships an update every 3 months, Mastering Physics every 12 months. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Physics Answers | Mastering Physics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Size | 111 MB | 14 MB |
| Requires iOS | **11.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Biobrain Learning Pty Ltd](https://appshunter.io/developer/1371680532) | [DEEPPATH LLC](https://appshunter.io/developer/1531915855) |

## What reviewers say

### Physics Answers

[App page](https://appshunter.io/ios/app/physics-answers-ap-physics/id1510694550)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Content | $9.99 | per month |
| All Content | $49.99 | per year |


### Mastering Physics

[App page](https://appshunter.io/ios/app/mastering-physics/id6468366090)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Physics Answers free?

Physics Answers is free to download, with in-app purchases available.

### Is Mastering Physics free?

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

### Do Physics Answers or Mastering Physics have ads?

Neither Physics Answers nor Mastering Physics shows ads.

### Which is updated more often, Physics Answers or Mastering Physics?

Physics Answers ships an update every 3 months, and Mastering Physics every 12 months. Most recently, Physics Answers was updated on September 9, 2026 and Mastering Physics on September 11, 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.*