# CleanSpace Smart vs WatchGas

The clearest difference is rating: WatchGas at 5.0 against CleanSpace Smart's 3.0. WatchGas also leads on update cadence (every 3 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

WatchGas holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CleanSpace Smart ships an update every 2 months, WatchGas every 3 weeks. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CleanSpace Smart | WatchGas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/cleanspace-smart/id1540521417/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/watchgas/id6479701347/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 70 MB | 49 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CleanSpace Technology Pty Ltd](https://appshunter.io/developer/1540514188) | [WatchGas](https://appshunter.io/developer/1736959878) |

## What reviewers say

### CleanSpace Smart

[App page](https://appshunter.io/ios/app/cleanspace-smart/id1540521417)

Monitor your respirator's performance in real-time, including protection levels, filter usage, and battery life. Receive smart alerts for maintenance and access training resources to ensure optimal safety.

**Highlights:** Real-time protection visibility, Filter usage tracking, Battery performance monitoring, Smart alerts for maintenance, Training videos and guides, Filter selection tools

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

**In-app purchases:** none


### WatchGas

[App page](https://appshunter.io/ios/app/watchgas/id6479701347)

This application allows users to manage and configure their WatchGas SST1 and SST4 devices. It provides essential tools for device setup and operational control.

**Highlights:** Device management, Device configuration, SST1 support, SST4 support, Compliance tools

**In-app purchases:** none


## Frequently asked questions

### Is CleanSpace Smart free?

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

### Is WatchGas free?

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

### Which has better reviews, CleanSpace Smart or WatchGas?

WatchGas is rated higher. CleanSpace Smart averages 3.0 out of 5 from 1 ratings, while WatchGas averages 5.0 from 1 ratings.

### Do CleanSpace Smart or WatchGas have ads?

Neither CleanSpace Smart nor WatchGas shows ads.

### Which is updated more often, CleanSpace Smart or WatchGas?

CleanSpace Smart ships an update every 2 months, and WatchGas every 3 weeks. Most recently, CleanSpace Smart was updated on October 23, 2026 and WatchGas on October 8, 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.*