# TimeMachine Viewer vs W

The clearest difference is update cadence: TimeMachine Viewer at every 2 months against W's every 4 months. TimeMachine Viewer also leads on iOS requirement (10.0 vs 15). On price, ads, in-app purchases and device support there is nothing between them.

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

TimeMachine Viewer ships an update every 2 months, W every 4 months. Both last shipped on September 8, 2026.

## The numbers

| Metric | TimeMachine Viewer | W |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/timemachine-viewer/id1481218877/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | — |
| Size | 20 MB | 45 MB |
| Requires iOS | **10.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Contractor Nation Corporation](https://appshunter.io/developer/1126353201) | [LumenRadio AB](https://appshunter.io/developer/1443137236) |

## What reviewers say

### TimeMachine Viewer

[App page](https://appshunter.io/ios/app/timemachine-viewer/id1481218877)

Monitor your home's basement or crawl space conditions remotely. Track temperature, humidity, and sump pump status with historical data analysis to ensure a dry environment. Integrates with specific home monitoring hardware.

**Highlights:** Remote basement/crawl space monitoring, Temperature and humidity tracking, Historical data analysis, Sump pump status monitoring, Backup battery usage tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### W

[App page](https://appshunter.io/ios/app/w-bacnet/id6472276160)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TimeMachine Viewer free?

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

### Is W free?

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

### Do TimeMachine Viewer or W have ads?

Neither TimeMachine Viewer nor W shows ads.

### Which is updated more often, TimeMachine Viewer or W?

TimeMachine Viewer ships an update every 2 months, and W every 4 months. Most recently, TimeMachine Viewer was updated on September 8, 2026 and W on September 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.*