# Physics Formula Library by CS vs A Level Chemistry Practice

The clearest difference is in-app purchases: A Level Chemistry Practice at none against Physics Formula Library by CS's 1. A Level Chemistry Practice also leads on ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Physics Formula Library by CS sells 1 one-off in-app purchase. A Level Chemistry Practice asks for nothing beyond the download.

## The numbers

| Metric | Physics Formula Library by CS | A Level Chemistry Practice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Size | 10 MB | 29 MB |
| Requires iOS | 18.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) | [Manish Kumar](https://appshunter.io/developer/1854995154) |

## What reviewers say

### Physics Formula Library by CS

[App page](https://appshunter.io/ios/app/physics-formula-library-by-cs/id6752376666)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $1.99 | one-time |


### A Level Chemistry Practice

[App page](https://appshunter.io/ios/app/a-level-chemistry-practice/id6761654171)

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

**In-app purchases:** none


## Frequently asked questions

### Is Physics Formula Library by CS free?

Physics Formula Library by CS is free to download, with in-app purchases available.

### Is A Level Chemistry Practice free?

A Level Chemistry Practice is free to download, with no in-app purchases.

### Do Physics Formula Library by CS or A Level Chemistry Practice have ads?

Physics Formula Library by CS shows ads; A Level Chemistry Practice does not.

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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.*