# Fronius Solar.SOS vs REFUview

Fronius Solar.SOS and REFUview are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Fronius Solar.SOS ships an update every 3 months, REFUview every 2 months. The most recent releases landed on August 19, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Fronius Solar.SOS | REFUview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/fronius-solarsos/id1516602936/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 15 MB | 13 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Fronius International GmbH](https://appshunter.io/developer/431601279) | [REFU Elektronik GmbH](https://appshunter.io/developer/1128745191) |

## What reviewers say

### Fronius Solar.SOS

[App page](https://appshunter.io/ios/app/fronius-solarsos/id1516602936)

This business tool helps installers quickly resolve technical issues with solar systems. It allows for easy ordering of replacement parts and provides access to important documentation. The app streamlines the service process directly at the installation site.

**Highlights:** Manage multiple accounts, Order replacement parts, Track order status, Messaging with support, Access installation guides, Troubleshoot technical issues

**In-app purchases:** none


### REFUview

[App page](https://appshunter.io/ios/app/refuview/id6744369246)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fronius Solar.SOS free?

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

### Is REFUview free?

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

### Do Fronius Solar.SOS or REFUview have ads?

Neither Fronius Solar.SOS nor REFUview shows ads.

### Which is updated more often, Fronius Solar.SOS or REFUview?

Fronius Solar.SOS ships an update every 3 months, and REFUview every 2 months. Most recently, Fronius Solar.SOS was updated on August 19, 2026 and REFUview on September 16, 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.*