# Crisp vs Water Eject & Dust

The clearest difference is update cadence: Water Eject & Dust at every 4 days against Crisp's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Crisp sells 4 in-app purchases, starting at $2.99 per 7 days and Water Eject & Dust sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Crisp ships an update every 2 months, Water Eject & Dust every 4 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Crisp | Water Eject & Dust |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889) | [Cloud Motion Lab LLC](https://appshunter.io/developer/1866865109) |

## What reviewers say

### Crisp

[App page](https://appshunter.io/ios/app/crisp-water-eject/id6767547524)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $5.99 | per month |
| Yearly | $34.99 | per year |
| Lifetime | $99.99 | one-time |


### Water Eject & Dust

[App page](https://appshunter.io/ios/app/water-eject-and-dust-sploosh/id6812717091)

This app helps clear muffled iPhone speakers caused by water or dust. It uses specific sound frequencies to expel water and dislodge dust from the speaker grille. Results are compared using microphone input before and after the cleaning process.

**Highlights:** Water expulsion mode, Dust removal mode, Sound frequency sweeps, Microphone-based result comparison, Siri integration for starting runs, One-time purchase for unlimited use

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Crisp free?

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

### Is Water Eject & Dust free?

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

### Do Crisp or Water Eject & Dust have ads?

Neither Crisp nor Water Eject & Dust shows ads.

### Which is updated more often, Crisp or Water Eject & Dust?

Crisp ships an update every 2 months, and Water Eject & Dust every 4 days. Most recently, Crisp was updated on October 28, 2026 and Water Eject & Dust on October 31, 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.*