# CSI CloudPro vs NEPViewer

The clearest difference is rating: CSI CloudPro at 5.0 against NEPViewer's 2.3. CSI CloudPro also leads on iOS requirement (13.0 vs 15.0). NEPViewer's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (4 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CSI CloudPro holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 11% of CSI CloudPro's written reviews are positive against 14% of NEPViewer's, so the app with the better star average is not the one people write more warmly about.

CSI CloudPro ships an update every 2 months, NEPViewer every 3 weeks. The most recent releases landed on September 25, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CSI CloudPro | NEPViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/csi-cloudpro/id1462571102/reviews)** | [2.3 (4 ratings)](https://appshunter.io/ios/app/nepviewer/id1480269247/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 11.1% of reviews | **14.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 56 MB | 62 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Canadian Solar Inc.](https://appshunter.io/developer/1452785450) | [Northern Electric & Power Inc](https://appshunter.io/developer/1202736933) |

## What reviewers say

### CSI CloudPro

[App page](https://appshunter.io/ios/app/csi-cloudpro/id1462571102)

Access real-time and historical operational data for Canadian Solar plants. Monitor production energy, revenue, and device status remotely via a network connection.

**Highlights:** Monitor running parameters, View production energy, Track production revenue, Check device status, Access real-time data, View historical data

**Features:** macOS Compatibility

**In-app purchases:** none


### NEPViewer

[App page](https://appshunter.io/ios/app/nepviewer/id1480269247)

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.

**Highlights:** Real-time system monitoring, Track energy harvest, View installed systems, Check system performance, Multi-language support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and easy to use (some users)
- ✨ Modern look and feel (some users)
- ✅ App does what it's supposed to (sometimes)

**What reviewers complain about**

- 🐛 Frequent crashes and closing
- ❌ Login and password reset issues
- 📉 Inaccurate or delayed data
- 🚫 Loss of important features (panel view, daily graphs)
- 🖥️ Poor iPad/landscape support

**Reported bugs**

- App closes immediately on launch/login
- Blank error box when resetting password
- App offline frequently
- Inaccurate wattage readings
- Cannot connect to all inverters

**Requested features**

- Restore panel performance view
- Restore daily/hourly graphs and curves
- Improve iPad/landscape mode support
- Better customer support
- Option to stay logged in


## Frequently asked questions

### Is CSI CloudPro free?

CSI CloudPro is free to download, with no in-app purchases.

### Is NEPViewer free?

NEPViewer is free to download, with no in-app purchases.

### Which has better reviews, CSI CloudPro or NEPViewer?

CSI CloudPro is rated higher. CSI CloudPro averages 5.0 out of 5 from 1 ratings, while NEPViewer averages 2.3 from 4 ratings.

### Do CSI CloudPro or NEPViewer have ads?

Neither CSI CloudPro nor NEPViewer shows ads.

### Which is updated more often, CSI CloudPro or NEPViewer?

CSI CloudPro ships an update every 2 months, and NEPViewer every 3 weeks. Most recently, CSI CloudPro was updated on September 25, 2026 and NEPViewer on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*