# Treequation vs SHINKAI 深海

The clearest difference is in-app purchases: SHINKAI 深海 at none against Treequation's 1. Treequation's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price and ads there is nothing between them.

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

## The numbers

| Metric | Treequation | SHINKAI 深海 |
| --- | --- | --- |
| 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 | No |
| Update frequency | — | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Second Entity LLC](https://appshunter.io/developer/413286706) | [Shota Katsuyama](https://appshunter.io/developer/6792005346) |

## 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 |


### SHINKAI 深海

[App page](https://appshunter.io/ios/app/shinkai/id6792005464)

**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 SHINKAI 深海 free?

SHINKAI 深海 is free to download, with no in-app purchases.

### Do Treequation or SHINKAI 深海 have ads?

Neither Treequation nor SHINKAI 深海 shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*