# Greybox Tool vs Clear Wave & Water Eject

The clearest difference is rating: Clear Wave & Water Eject at 4.6 against Greybox Tool's 2.5. Clear Wave & Water Eject also leads on ratings volume (19 vs 2). Greybox Tool's advantage is in-app purchases (none vs 15). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Clear Wave & Water Eject sells 7 in-app purchases, starting at $3.99 per 7 days. Greybox Tool asks for nothing beyond the download.

Clear Wave & Water Eject holds the better App Store score, 4.6 against 2.5. That said, the two scores are not equally well evidenced: Clear Wave & Water Eject has 19 ratings behind it against 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Greybox Tool | Clear Wave & Water Eject |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/greybox-tool/id6451376986/reviews) | **[4.6 (19 ratings)](https://appshunter.io/ios/app/clear-wave-and-water-eject/id6748929363/reviews)** |
| Number of ratings | 2 | **19** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 47 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | +4 |
| Developer | [Yunfeng Wei](https://appshunter.io/developer/6808345644) | [Changsha Zhilan Technology Co., Ltd](https://appshunter.io/developer/1819868911) |

## What reviewers say

### Greybox Tool

[App page](https://appshunter.io/ios/app/greybox-tool/id6451376986)

A utility for developers to understand ad network operations. It allows manual triggering of postbacks and viewing device identifiers for debugging and attribution tracing. Developers can also inspect SKAdNetwork requests and postback content.

**Highlights:** Manual postback triggering, View device identifiers (IDFA, IDFV), Inspect SKAdNetwork requests, Share debugging information, Analyze ad network processes

**In-app purchases:** none


### Clear Wave & Water Eject

[App page](https://appshunter.io/ios/app/clear-wave-and-water-eject/id6748929363)

Easily test and enhance your device's audio output. This app offers a tone generator for custom frequencies and a speaker booster to improve sound quality. It includes features for stereo testing and customizable test plans to ensure optimal speaker performance.

**Highlights:** Speaker testing, Tone generator (0-20000 Hz), Speaker booster (bass & volume), Stereo channel testing, Customizable test plans, Turbo mode

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClearWave Pro（Weekly） | $3.99 | per 7 days |
| Speaker Test Pro（Weekly） | $4.99 | per 7 days |
| Speaker Test Ultra（Weekly） | $4.99 | per 7 days |
| Speaker Test Pro（Weekly） | $7.99 | per 7 days |
| ClearWave Pro（Weekly） | $9.99 | per 7 days |
| Speaker Test Pro（Weekly） | $14.99 | per 7 days |
| Speaker Test Pro（Yearly） | $19.99 | per year |


## Frequently asked questions

### Is Greybox Tool free?

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

### Is Clear Wave & Water Eject free?

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

### Which has better reviews, Greybox Tool or Clear Wave & Water Eject?

Clear Wave & Water Eject is rated higher. Greybox Tool averages 2.5 out of 5 from 2 ratings, while Clear Wave & Water Eject averages 4.6 from 19 ratings.

### Do Greybox Tool or Clear Wave & Water Eject have ads?

Neither Greybox Tool nor Clear Wave & Water Eject shows ads.

### Which is updated more often, Greybox Tool or Clear Wave & Water Eject?

Greybox Tool ships an update every 2 weeks, and Clear Wave & Water Eject every 2 weeks. Most recently, Greybox Tool was updated on September 18, 2026 and Clear Wave & Water Eject on September 9, 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.*