# Fronius Solar.start vs Voltara Setup

The clearest difference is update cadence: Fronius Solar.start at every 2 months against Voltara Setup's every 4 months. On price, ads, in-app purchases and device support 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 ships an update every 2 months, Voltara Setup every 4 months. The most recent releases landed on October 12, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Fronius Solar.start | Voltara Setup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/fronius-solarstart/id1509399310/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 21.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | — |
| Size | 202 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Fronius International GmbH](https://appshunter.io/developer/431601279) | [Voltara AG](https://appshunter.io/developer/1744554924) |

## What reviewers say

### 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


### Voltara Setup

[App page](https://appshunter.io/ios/app/voltara-setup/id6756095830)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fronius Solar.start free?

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

### Is Voltara Setup free?

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

### Do Fronius Solar.start or Voltara Setup have ads?

Neither Fronius Solar.start nor Voltara Setup shows ads.

### Which is updated more often, Fronius Solar.start or Voltara Setup?

Fronius Solar.start ships an update every 2 months, and Voltara Setup every 4 months. Most recently, Fronius Solar.start was updated on October 12, 2026 and Voltara Setup on September 20, 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.*