# Link'Em All vs Feynman rules

The clearest difference is in-app purchases: Feynman rules at none against Link'Em All's 1. Feynman rules also leads on ads (none vs shown). Link'Em All's advantage is iOS requirement (12.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Link'Em All sells 1 one-off in-app purchase. Feynman rules asks for nothing beyond the download.

## The numbers

| Metric | Link'Em All | Feynman rules |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Size | 169 MB | 6 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIKHAIL HRYHORYEU](https://appshunter.io/developer/1536663752) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Link'Em All

[App page](https://appshunter.io/ios/app/linkem-all/id1581701775)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium account | $1.99 | one-time |


### Feynman rules

[App page](https://appshunter.io/ios/app/feynman-rules/id6478752222)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Link'Em All free?

Link'Em All is free to download, with in-app purchases available.

### Is Feynman rules free?

Feynman rules is free to download, with no in-app purchases.

### Do Link'Em All or Feynman rules have ads?

Link'Em All shows ads; Feynman rules 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.*