# Code Compile vs Physics Constants Library

The clearest difference is ads: Code Compile at none against Physics Constants Library's shown. Code Compile also leads on iOS requirement (16.4 vs 18.4). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Code Compile sells 1 one-off in-app purchase and Physics Constants Library sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Code Compile ships an update every 4 months, Physics Constants Library every 7 months. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Code Compile | Physics Constants Library |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 7 months |
| Size | 85 MB | 10 MB |
| Requires iOS | **16.4** | 18.4 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [TagMango Inc](https://appshunter.io/developer/1611765353) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Code Compile

[App page](https://appshunter.io/ios/app/code-compile/id6746938004)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JavaScript Code Execution | $29.99 | one-time |


### 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 Code Compile free?

Code Compile is free to download, with in-app purchases available.

### Is Physics Constants Library free?

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

### Do Code Compile or Physics Constants Library have ads?

Physics Constants Library shows ads; Code Compile does not.

### Which is updated more often, Code Compile or Physics Constants Library?

Code Compile ships an update every 4 months, and Physics Constants Library every 7 months. Most recently, Code Compile was updated on September 26, 2026 and Physics Constants Library on September 20, 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.*