NEPViewer vs PowerInsight2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NEPViewer
Monitor your BDM micro inverter system in real-time. Track system output and energy harvest, or view installed systems and their performance. Requires registration on the NEPViewer website.
- Real-time system monitoring
- Track energy harvest
- View installed systems
- Check system performance
- Multi-language support
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NEPViewer provides real-time monitoring for BDM micro inverter systems from Northern Electric & Power Inc. (NEP) - End user can easily check on system output and energy harvest - Installer can check a list of systems installed and performance A username and password from https://www.nepviewer.com is required. User of this APP needs to register on the NEPViewer website first. NEPViewer supports multiple languages including English, Spanish, German, French, Portuguese, Polish, Japanese and Chinese.
PowerInsight2
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Power Insight 2 is a power device management application launched by Sineng Electric Co., LTD. It can connect the power device or data collector through Bluetooth or WiFi, view various real-time data of the power device, control or set the power device, and download operation and fault records from the power device. Supported devices include: PV inverter, data acquisition unit, data acquisition stick.
Screenshots
Verdict
The clearest difference is iOS requirement: PowerInsight2 at 13.0 against NEPViewer's 15.0. 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.
NEPViewer ships an update every 3 weeks, PowerInsight2 monthly. The most recent releases landed on September 22, 2026 and September 8, 2026 respectively.
| Parameter | NEPViewer | PowerInsight2 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (3 ratings) — better | — |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Northern Electric & Power Inc | SINENG ELECTRIC CO.,LTD. |
Bugs and requests
NEPViewer
Reported bugs
12 issues- App closes immediately on launch/login
- Blank error box when resetting password
- App offline frequently
- Inaccurate wattage readings
- Cannot connect to all inverters
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- Serial number error during inverter pairing
- Display issues on iPad (white screen, cut-off content)
- App crashes after iOS updates
- Network anomaly errors
- Login issues after updates
- Data not refreshing or delayed
- App requires daily reinstallation to view data
Requested features
7 requests- Restore panel performance view
- Restore daily/hourly graphs and curves
- Improve iPad/landscape mode support
- Better customer support
- Option to stay logged in
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- More accurate real-time data
- Improve scaling of axes in graphs
PowerInsight2
Not enough reviews yet to summarise bugs or requests.
In-app purchases
NEPViewer
No in-app purchases
PowerInsight2
No in-app purchases
