# Physics Answers vs Pathology In Practice (PiP)

The clearest difference is in-app purchases: Pathology In Practice (PiP) 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 15.0). 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. Pathology In Practice (PiP) asks for nothing beyond the download.

Physics Answers ships an update every 3 months, Pathology In Practice (PiP) every 12 months. The most recent releases landed on September 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Physics Answers | Pathology In Practice (PiP) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Size | 111 MB | 30 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Biobrain Learning Pty Ltd](https://appshunter.io/developer/1371680532) | [Step Communications Ltd](https://appshunter.io/developer/819417876) |

## 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 |


### Pathology In Practice (PiP)

[App page](https://appshunter.io/ios/app/pathology-in-practice-pip/id6473620757)

**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 Pathology In Practice (PiP) free?

Pathology In Practice (PiP) is free to download, with no in-app purchases.

### Do Physics Answers or Pathology In Practice (PiP) have ads?

Neither Physics Answers nor Pathology In Practice (PiP) shows ads.

### Which is updated more often, Physics Answers or Pathology In Practice (PiP)?

Physics Answers ships an update every 3 months, and Pathology In Practice (PiP) every 12 months. Most recently, Physics Answers was updated on September 25, 2026 and Pathology In Practice (PiP) on October 18, 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.*