# Water Out Puzzle® vs Stack Fever

The clearest difference is in-app purchases: Stack Fever at none against Water Out Puzzle®'s 16. Water Out Puzzle®'s advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, update cadence and ads there is nothing between them.

Both are free to download. Water Out Puzzle® sells 15 one-off in-app purchases. Stack Fever asks for nothing beyond the download.

Water Out Puzzle® ships an update weekly, Stack Fever every 5 days. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Water Out Puzzle® | Stack Fever |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18K ratings)](https://appshunter.io/ios/app/water-out-puzzle/id6747998558/reviews)** | — |
| Number of ratings | **18K** | — |
| Positive reviews | 29.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 514 MB | 35 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [HM Games Pty Ltd](https://appshunter.io/developer/1809904811) | [Muna Ahmed](https://appshunter.io/developer/6775582514) |

## What reviewers say

### Water Out Puzzle®

[App page](https://appshunter.io/ios/app/water-out-puzzle/id6747998558)

Engage your mind with a clever puzzle game where you strategically move colored blocks to fill pipes. Solve increasingly difficult levels by ensuring all blocks are filled with water to progress.

**Highlights:** Move colored blocks to pipes, Fill all blocks with water, Solve challenging puzzles, Plan your moves carefully, Clever puzzle experience

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Summer Pack | $0.99 | one-time |
| Gold 1 | $1.99 | one-time |
| Life boost bundle | $1.99 | one-time |
| Gold 1 New | $1.99 | one-time |
| End game offer | $4.99 | one-time |
| Welcome bundle | $4.99 | one-time |
| Small bundle | $4.99 | one-time |
| End game offer 1 New | $4.99 | one-time |
| Gold 2 | $7.99 | one-time |
| End game offer 2 | $7.99 | one-time |
| Seasonal Bundle 1 | $7.99 | one-time |
| Premium Pass | $9.99 | one-time |
| Standard bundle | $9.99 | one-time |
| End game offer 3 | $14.99 | one-time |
| Big bundle | $19.99 | one-time |

**What reviewers like**

- 👍 Fun to navigate
- 👍 Satisfying graphics
- 💡 Good for the mind

**What reviewers complain about**

- ⏱️ Timer causes stress
- 🐛 Some levels are impossible to beat
- 🚫 Doesn't allow background apps

**Reported bugs**

- Level 77 has extra colors with no tiles to direct them

**Requested features**

- Continuation of the game
- Zen mode with no timer


### Stack Fever

[App page](https://appshunter.io/ios/app/stack-fever/id6816506950)

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

**In-app purchases:** none


## Frequently asked questions

### Is Water Out Puzzle® free?

Water Out Puzzle® is free to download, with in-app purchases available.

### Is Stack Fever free?

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

### Do Water Out Puzzle® or Stack Fever have ads?

Both Water Out Puzzle® and Stack Fever show ads.

### Which is updated more often, Water Out Puzzle® or Stack Fever?

Water Out Puzzle® ships an update weekly, and Stack Fever every 5 days. Most recently, Water Out Puzzle® was updated on October 30, 2026 and Stack Fever on October 29, 2026.

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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.*