WatchPower vs TommaTech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WatchPower
Monitor off-grid inverters remotely via Wi-Fi. View device status, configure settings, receive alerts for warnings or alarms, and record historical data.
- Monitor inverter status
- Configure device settings
- Receive warning/alarm notifications
- Record device data history
- Wi-Fi module integration
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WatchPower is an iOS monitoring application which can monitor off-grid inverters via Wi-Fi module. Here are the application uses: 1. Display device status during normal operation. 2. Configure device setting after installation. 3. Notify user when a warning or alarm happened. 4. Allow user record device data history.
TommaTech
Monitor your inverter's real-time performance, including power generation and consumption. Analyze operational data at a minute level to ensure optimal inverter function.
- Real-time inverter data viewing
- Minute-level statistical analysis
- Online status tracking
- Power generation monitoring
- Power consumption tracking
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Tommatech app can view the data reported by the inverter in real time, conduct minute level statistical analysis on whether the inverter is online, power generation, power consumption and on-line power, and master the operation of the inverter in time.
Screenshots
Verdict
WatchPower and TommaTech are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
WatchPower ships an update every 3 months, TommaTech every 6 weeks. The most recent releases landed on August 31, 2026 and June 8, 2026 respectively.
| Parameter | WatchPower | TommaTech |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (73 ratings) — better | — |
| Positive reviews | 17.2% of reviews — better | 12.5% of reviews |
| Number of ratings | 73 — better | — |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 22 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | 祥梯 孟 | TommaTech GmbH |
Customer experience
WatchPower
TommaTech
Bugs and requests
WatchPower
Reported bugs
3 issues- Devices disappearing from the app
- Incorrect battery capacity and power readings
- Crashes and freezes when trying to access data
Requested features
5 requests- Add real-time monitoring and updates
- Improve user interface and add more visualizations
- Implement push notifications for important events
- Allow password recovery and account management
- Add support for Bluetooth connectivity
TommaTech
Not enough reviews yet to summarise bugs or requests.
In-app purchases
WatchPower
No in-app purchases
TommaTech
No in-app purchases
