# COMath vs Wastewater Treatment Level 2

The clearest difference is in-app purchases: COMath at none against Wastewater Treatment Level 2's 1. Wastewater Treatment Level 2's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Wastewater Treatment Level 2 sells 1 in-app purchase, starting at $7.00 per month. COMath asks for nothing beyond the download.

## The numbers

| Metric | COMath | Wastewater Treatment Level 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (44 ratings)](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Ad-supported | — |
| Size | 89 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Jianfeng Wu](https://appshunter.io/developer/1435210283) | [Ambitionz Apps](https://appshunter.io/developer/1764753535) |

## What reviewers say

### COMath

[App page](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503)

This app offers a fun way to practice math skills and train your brain with a vast collection of word problems and logic puzzles. It covers basic arithmetic, algebra, and popular number games to help users of all ages improve their mathematical and logical abilities.

**Highlights:** Addition, subtraction, multiplication, division practice, 100,000+ math word problems with explanations, Step-by-step algebra equation solver, Number puzzles (Sudoku, Calcudoku, etc.), Logic and brain training, Offline practice

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### Wastewater Treatment Level 2

[App page](https://appshunter.io/ios/app/wastewater-treatment-level-2/id6738367060)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wastewater Treatment Level 2 | $7.00 | per month |


## Frequently asked questions

### Is COMath free?

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

### Is Wastewater Treatment Level 2 free?

Wastewater Treatment Level 2 is free to download, with in-app purchases available.

### Do COMath or Wastewater Treatment Level 2 have ads?

COMath shows ads; Wastewater Treatment Level 2 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.*