WatchPower vs GSL ESS
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.
GSL ESS
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This app is used for remote monitoring and maintenance of home energy storage.
Screenshots
Verdict
The clearest difference is iOS requirement: WatchPower at 11.0 against GSL ESS's 13.0. On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on August 31, 2026 and September 11, 2026 respectively.
| Parameter | WatchPower | GSL ESS |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (73 ratings) — better | — |
| Positive reviews | 17.2% of reviews | — |
| Number of ratings | 73 — better | — |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 22 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 祥梯 孟 | 永敬 邓 |
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
GSL ESS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
WatchPower
No in-app purchases
GSL ESS
No in-app purchases
