# Energy Viewer vs Fronius Solar.start

The clearest difference is rating: Fronius Solar.start at 3.0 against Energy Viewer's 2.3. Energy Viewer's advantage is review sentiment (40% vs 22%) and iOS requirement (11.0 vs 16.0). On price, ratings volume, update cadence and ads 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.start holds the better App Store score, 3.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews complicate that: 40% of Energy Viewer's written reviews are positive against 22% of Fronius Solar.start's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 10, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Energy Viewer | Fronius Solar.start |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/energy-viewer/id1436015214/reviews) | **[3.0 (5 ratings)](https://appshunter.io/ios/app/fronius-solarstart/id1509399310/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | **40.3% of reviews** | 21.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 45 MB | 202 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Fimer Spa](https://appshunter.io/developer/1499080011) | [Fronius International GmbH](https://appshunter.io/developer/431601279) |

## What reviewers say

### Energy Viewer

[App page](https://appshunter.io/ios/app/energy-viewer/id1436015214)

Monitor your solar power system's output and home's energy consumption remotely. Track energy flows, manage your e-Car charging, and receive in-app notifications for plant status and updates.

**Highlights:** Remote solar system monitoring, Home energy consumption tracking, E-Car charging management, In-app notifications, Firmware updates, PV plant performance monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Fronius Solar.start

[App page](https://appshunter.io/ios/app/fronius-solarstart/id1509399310)

This app simplifies the setup of Fronius inverters and related devices through a guided, step-by-step process. It allows for quick commissioning, firmware updates, and integration with the Fronius Solar.web monitoring platform directly from a mobile device.

**Highlights:** QR-code scanning for device setup, Step-by-step commissioning guide, Inverter firmware updates, Network and product configuration, Integration with Fronius Solar.web, Quick access to web interface, How-to videos

**In-app purchases:** none


## Frequently asked questions

### Is Energy Viewer free?

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

### Is Fronius Solar.start free?

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

### Which has better reviews, Energy Viewer or Fronius Solar.start?

Fronius Solar.start is rated higher. Energy Viewer averages 2.3 out of 5 from 3 ratings, while Fronius Solar.start averages 3.0 from 5 ratings.

### Do Energy Viewer or Fronius Solar.start have ads?

Neither Energy Viewer nor Fronius Solar.start shows ads.

### Which is updated more often, Energy Viewer or Fronius Solar.start?

Energy Viewer ships an update every 2 months, and Fronius Solar.start every 2 months. Most recently, Energy Viewer was updated on August 10, 2026 and Fronius Solar.start on September 25, 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.*