# Fast&Cold vs Water Eject

The clearest difference is in-app purchases: Fast&Cold at none against Water Eject's 2. Fast&Cold also leads on ads (none vs shown) and update cadence (every 2 months vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Water Eject sells 2 in-app purchases, starting at $3.99 per month. Fast&Cold asks for nothing beyond the download.

Fast&Cold ships an update every 2 months, Water Eject every 4 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fast&Cold | Water Eject |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (33 ratings)](https://appshunter.io/ios/app/water-eject-soniflux/id6747951377/reviews)** |
| Number of ratings | — | **33** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 39 MB | 19 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Innohub](https://appshunter.io/developer/1468230448) | [Volkan ozturk](https://appshunter.io/developer/1793550568) |

## What reviewers say

### Fast&Cold

[App page](https://appshunter.io/ios/app/fast-and-cold/id1489908264)

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

**In-app purchases:** none


### Water Eject

[App page](https://appshunter.io/ios/app/water-eject-soniflux/id6747951377)

Safely remove water and dust from your device's speaker using sound waves. Offers various cleaning modes, a tone generator for diagnostics, and a decibel meter. Features real-time progress tracking on the lock screen and haptic feedback.

**Highlights:** Water ejection with 165 Hz tone, Multiple speaker cleaner modes, Clear-wave sweep for deep unclogging, Tone generator (40 Hz–20 kHz), Real-time decibel meter, Stereo test for channel faults, Live Activity and Dynamic Island integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoniFlux Monthly Subscription | $3.99 | per month |
| SoniFlux Yearly Subscription | $12.99 | per year |


## Frequently asked questions

### Is Fast&Cold free?

Fast&Cold is free to download, with no in-app purchases.

### Is Water Eject free?

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

### Do Fast&Cold or Water Eject have ads?

Water Eject shows ads; Fast&Cold does not.

### Which is updated more often, Fast&Cold or Water Eject?

Fast&Cold ships an update every 2 months, and Water Eject every 4 months. Most recently, Fast&Cold was updated on October 26, 2026 and Water Eject on October 24, 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.*