# AR Projectile Physics Sim vs Physics Constants Library

The clearest difference is in-app purchases: AR Projectile Physics Sim at none against Physics Constants Library's 1. AR Projectile Physics Sim also leads on ads (none vs shown) and update cadence (every 9 days vs every 7 months). On price there is nothing between them.

Both are free to download. Physics Constants Library sells 1 one-off in-app purchase. AR Projectile Physics Sim asks for nothing beyond the download.

AR Projectile Physics Sim ships an update every 9 days, Physics Constants Library every 7 months. The most recent releases landed on October 11, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | AR Projectile Physics Sim | Physics Constants Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 7 months |
| Size | 78 MB | 10 MB |
| Requires iOS | **11.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jay Murphree](https://appshunter.io/developer/1496966366) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### AR Projectile Physics Sim

[App page](https://appshunter.io/ios/app/ar-projectile-physics-sim/id1497066365)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Constants Library

[App page](https://appshunter.io/ios/app/physics-constants-library/id6751224343)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is AR Projectile Physics Sim free?

AR Projectile Physics Sim is free to download, with no in-app purchases.

### Is Physics Constants Library free?

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

### Do AR Projectile Physics Sim or Physics Constants Library have ads?

Physics Constants Library shows ads; AR Projectile Physics Sim does not.

### Which is updated more often, AR Projectile Physics Sim or Physics Constants Library?

AR Projectile Physics Sim ships an update every 9 days, and Physics Constants Library every 7 months. Most recently, AR Projectile Physics Sim was updated on October 11, 2026 and Physics Constants Library on October 22, 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.*