# Fronius Solar.SOS vs Circle Light 2025

The clearest difference is update cadence: Circle Light 2025 at every 3 weeks against Fronius Solar.SOS's every 3 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.SOS ships an update every 3 months, Circle Light 2025 every 3 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fronius Solar.SOS | Circle Light 2025 |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Free | — |
| Size | 15 MB | 38 MB |
| Requires iOS | **15.0** | 16 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fronius International GmbH](https://appshunter.io/developer/431601279) | [Schreder SA](https://appshunter.io/developer/601367904) |

## 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


### Circle Light 2025

[App page](https://appshunter.io/ios/app/circle-light-2025/id6737771647)

**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 Circle Light 2025 free?

Circle Light 2025 is free to download, with no in-app purchases.

### Do Fronius Solar.SOS or Circle Light 2025 have ads?

Neither Fronius Solar.SOS nor Circle Light 2025 shows ads.

### Which is updated more often, Fronius Solar.SOS or Circle Light 2025?

Fronius Solar.SOS ships an update every 3 months, and Circle Light 2025 every 3 weeks. Most recently, Fronius Solar.SOS was updated on November 7, 2026 and Circle Light 2025 on October 30, 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.*