NEPViewer vs BYM Cloud
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.
BYM Cloud
Manage device and energy information to streamline operations. This utility app enhances efficiency and intelligence for users.
- Device information management
- Energy information management
- Streamlined operations
- Enhanced intelligence
- User-friendly interface
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With BYM Cloud,you will be able to manage the information of device and energy, making Microinventer operation eaier and and smarter.
Screenshots
Verdict
The clearest difference is review sentiment: BYM Cloud at 100% against NEPViewer's 14%. BYM Cloud also leads on rating (5.0 vs 2.3) and iOS requirement (12.0 vs 15.0). On price, ratings volume, update cadence and ads 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.
BYM Cloud holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 14% of NEPViewer's written reviews are positive against 100% of BYM Cloud's.
NEPViewer ships an update every 3 weeks, BYM Cloud every 4 weeks. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | NEPViewer | BYM Cloud |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (4 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 14.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 60 MB |
| Age rating | 4+ | 17+ |
| Developer | Northern Electric & Power Inc | zhejiang benyi new energy technology co.,ltd. |
Customer experience
NEPViewer
BYM Cloud
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
Show 7 moreShow fewer
- 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
BYM Cloud
Not enough reviews yet to summarise bugs or requests.
In-app purchases
NEPViewer
No in-app purchases
BYM Cloud
No in-app purchases
