# NEPViewer vs Fronius Solar.web

The clearest difference is rating: Fronius Solar.web at 3.1 against NEPViewer's 2.0. NEPViewer's advantage is monetization model (free vs free with in-app purchases). On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

Fronius Solar.web holds the better App Store score, 3.1 against 2.0. Both are backed by a comparable volume of ratings — 5 and 7 respectively. Written reviews point the same way: 14% of NEPViewer's written reviews are positive against 19% of Fronius Solar.web's.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | NEPViewer | Fronius Solar.web |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (5 ratings)](https://appshunter.io/ios/app/nepviewer/id1480269247/reviews) | **[3.1 (7 ratings)](https://appshunter.io/ios/app/fronius-solarweb/id1528302827/reviews)** |
| Number of ratings | 5 | **7** |
| Positive reviews | 13.8% of reviews | **18.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 62 MB | 168 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Northern Electric & Power Inc](https://appshunter.io/developer/1202736933) | [Fronius International GmbH](https://appshunter.io/developer/431601279) |

## What reviewers say

### 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


### Fronius Solar.web

[App page](https://appshunter.io/ios/app/fronius-solarweb/id1528302827)

Monitor your photovoltaic system's performance with live data, historical energy trends, and expected generation. Manage batteries, analyze earnings, and view system components. Widgets provide quick access to key information.

**Highlights:** Live PV system data display, Historical energy data analysis, Expected generation forecasting, Battery management features, Earnings evaluation, System component viewing, Home and lock screen widgets

**Features:** iMessage stickers

**In-app purchases:** none

**What reviewers like**

- 🚀 Sleek and intuitive UI
- 👍 Comprehensive monitoring of solar production and consumption
- 🔋 Excellent battery management features

**What reviewers complain about**

- 🐛 Frequent login issues and app crashes
- ⏱️ Slow data updates and laggy performance
- 📉 Inconsistent or missing historical data
- 🔒 Lack of security features like biometric login

**Reported bugs**

- Daily production graph not functioning properly
- Inability to log in or add new installations
- Discrepancies between app and web portal data

**Requested features**

- Customizable notifications and alerts
- Integration with smart home platforms
- Improved data visualization and export options
- Apple Watch app for at-a-glance monitoring


## Frequently asked questions

### Is NEPViewer free?

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

### Is Fronius Solar.web free?

Fronius Solar.web is free to download, with no in-app purchases.

### Which has better reviews, NEPViewer or Fronius Solar.web?

Fronius Solar.web is rated higher. NEPViewer averages 2.0 out of 5 from 5 ratings, while Fronius Solar.web averages 3.1 from 7 ratings.

### Do NEPViewer or Fronius Solar.web have ads?

Neither NEPViewer nor Fronius Solar.web shows ads.

### Which is updated more often, NEPViewer or Fronius Solar.web?

NEPViewer ships an update every 3 weeks, and Fronius Solar.web every 3 weeks. Most recently, NEPViewer was updated on October 29, 2026 and Fronius Solar.web on October 29, 2026.

---

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