# Quick Math vs Water Sort

The clearest difference is iOS requirement: Water Sort at 15.1 against Quick Math's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick Math ships an update every 5 days, Water Sort every 4 days. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Quick Math | Water Sort |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 8 MB | 42 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HAKAN OZGER](https://appshunter.io/developer/1855495033) | [Meng-Yi Hsu](https://appshunter.io/developer/6783592735) |

## What reviewers say

### Quick Math

[App page](https://appshunter.io/ios/app/quick-math-speed-challenge/id6755679636)

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

**In-app purchases:** none


### Water Sort

[App page](https://appshunter.io/ios/app/water-sort-pour-puzzle/id6783993369)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quick Math free?

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

### Is Water Sort free?

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

### Do Quick Math or Water Sort have ads?

Neither Quick Math nor Water Sort shows ads.

### Which is updated more often, Quick Math or Water Sort?

Quick Math ships an update every 5 days, and Water Sort every 4 days. Most recently, Quick Math was updated on October 17, 2026 and Water Sort on October 12, 2026.

---

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