# Equazzler vs Feynman rules

The clearest difference is in-app purchases: Feynman rules at none against Equazzler's 1. Feynman rules also leads on ads (none vs shown). Equazzler'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. Equazzler sells 1 one-off in-app purchase. Feynman rules asks for nothing beyond the download.

## The numbers

| Metric | Equazzler | Feynman rules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/equazzler-addition-puzzle/id6466097939/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 6 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Awobaz Technologies Inc.](https://appshunter.io/developer/568093558) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Equazzler

[App page](https://appshunter.io/ios/app/equazzler-addition-puzzle/id6466097939)

Solve addition puzzles and enhance your calculation skills with this engaging game. It offers brain-boosting challenges and intuitive gameplay suitable for all ages. Sharpen your mental math abilities while having fun with unique equation riddles.

**Highlights:** Addition puzzle solving, Mental math skill enhancement, Brain-boosting challenges, Intuitive drag-and-drop gameplay, 40 levels of puzzles, Suitable for all ages

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | 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 Equazzler free?

Equazzler 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 Equazzler or Feynman rules have ads?

Equazzler 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.*