# GlossMeterDataOperator vs WaterTesting

GlossMeterDataOperator and WaterTesting are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

GlossMeterDataOperator ships an update fortnightly, WaterTesting every 3 weeks. The most recent releases landed on September 25, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | GlossMeterDataOperator | WaterTesting |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 24 MB | 16 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [沧海 汪](https://appshunter.io/developer/1468426514) | [Shanghai Ruosull Technology Co., Ltd](https://appshunter.io/developer/1735275002) |

## What reviewers say

### GlossMeterDataOperator

[App page](https://appshunter.io/ios/app/glossmeterdataoperator/id1468426515)

**Features:** Vision Pro support

**In-app purchases:** none


### WaterTesting

[App page](https://appshunter.io/ios/app/watertesting/id6479241037)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GlossMeterDataOperator free?

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

### Is WaterTesting free?

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

### Do GlossMeterDataOperator or WaterTesting have ads?

Neither GlossMeterDataOperator nor WaterTesting shows ads.

### Which is updated more often, GlossMeterDataOperator or WaterTesting?

GlossMeterDataOperator ships an update fortnightly, and WaterTesting every 3 weeks. Most recently, GlossMeterDataOperator was updated on September 25, 2026 and WaterTesting on September 30, 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.*