# Treequation vs Collatz Hailstone Link

The clearest difference is in-app purchases: Collatz Hailstone Link at none against Treequation's 1. Treequation's advantage is ads (none vs shown) and iOS requirement (12.0 vs 14.0). On price and device support there is nothing between them.

Both are free to download. Treequation sells 1 one-off in-app purchase. Collatz Hailstone Link asks for nothing beyond the download.

## The numbers

| Metric | Treequation | Collatz Hailstone Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/treequation/id6479197259/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 118 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Second Entity LLC](https://appshunter.io/developer/413286706) | [KwangHo Yun](https://appshunter.io/developer/1669492345) |

## What reviewers say

### Treequation

[App page](https://appshunter.io/ios/app/treequation/id6479197259)

Engage in a unique puzzle experience by balancing equation trees to solve mathematical challenges. Progress through difficulty levels, earn titles, and enjoy offline play with a minimalist design. Unlock unlimited puzzles with a single in-app purchase.

**Highlights:** Unlimited arithmetic puzzles, Equation tree balancing, Four difficulty levels, Six earnable titles, Offline play, Minimalist design

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game | $2.99 | one-time |


### Collatz Hailstone Link

[App page](https://appshunter.io/ios/app/collatz-hailstone-link/id6780455667)

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

**In-app purchases:** none


## Frequently asked questions

### Is Treequation free?

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

### Is Collatz Hailstone Link free?

Collatz Hailstone Link is free to download, with no in-app purchases.

### Do Treequation or Collatz Hailstone Link have ads?

Collatz Hailstone Link shows ads; Treequation 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.*