TimeMachine Viewer vs W
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TimeMachine Viewer
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.
- Remote basement/crawl space monitoring
- Temperature and humidity tracking
- Historical data analysis
- Sump pump status monitoring
- Backup battery usage tracking
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Use TimeMachine Viewer to monitor the status of your basement or crawl space by connecting to a Time Machine Data Logger already installed in your home. Keep track of the temperature and relative humidity in your home, and look through historical data to make sure that your basement or crawl space is staying dry throughout the year. If the Time Machine Data Logger is hooked up to an UltraSump 4, you'll also be able to track the status of your sump pump, including how often it turns on and how many times it has been running on backup battery power.
W
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The W-BACnet app has arrived! Upgrade firmware for LumenRadio W-BACnet devices by connecting to and upgrading the LumenRadio Gateway in the network through the app. In the Network map you will find a system overview where you can see signal strength, edit names of wireless nodes as well as seeing the health of the RS485 bus including which BACnet MS/TP address that is connected to that wireless node. You can also connect to any node in the network and change their name (up to 20 characters). The W-BACnet app requires W-BACnet firmware 3.1.1 and above, which can be downloaded from the LumenRadio support webpage. Note that you need to install FW 3.1.1 or above on the gateway from the nRF connect app to enable the functionality. It is also required to have at least 3.0.0 or above on all nodes in the network. You will need to update all nodes individually if they are on version 2.2.3. This will be the last time this is required. All future updates can be done by either this app or from the nRF connect app.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | TimeMachine Viewer | W |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15 |
| Further details — not scored | ||
| Size | 20 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Contractor Nation Corporation | LumenRadio AB |
In-app purchases
TimeMachine Viewer
No in-app purchases
W
No in-app purchases
