Fronius Solar.SOS vs Down Under Bridge Units
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fronius Solar.SOS
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.
- Manage multiple accounts
- Order replacement parts
- Track order status
- Messaging with support
- Access installation guides
- Troubleshoot technical issues
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Fronius Solar.SOS is a self-service solution for all technical queries. This is a business application that installers can use to initiate the service process online directly at the system location - quite simply with the serial number of the inverter or a state code. In the space of a few clicks, Solar.SOS supports installers with troubleshooting and ordering replacement parts. The big advantage is that with this app installers can resolve technical problems themselves at any time. Attention - this app is purely a solution for installers (B2B). Features: - Manage multiple accounts, all from a single account - All orders at a glance (case overview) - Rapid ordering of replacement parts - Check the status of orders with ease - Messaging function with technical support (case messages) - Access to all relevant Installation Instructions and Operating Instructions (YouTube, etc.)
Down Under Bridge Units
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Down Under Bridge Units app is created specifically for all Down Under Bridge Units drivers to manage their job schedule with ease. If you’re a new Down Under Bridge Units and need a new account for app login, please contact an administrator so that they can send you an invite. From within this app, you can: - View and manage your job schedule - Receive SMS notifications and updates about your jobs - Attach and upload site dockets to jobs - View job contact information - View recommended routes and stop points for remote jobs
Screenshots
Verdict
The clearest difference is update cadence: Fronius Solar.SOS at every 3 months against Down Under Bridge Units's every 10 months. Down Under Bridge Units's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Down Under Bridge Units every 10 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Fronius Solar.SOS | Down Under Bridge Units |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Fronius International GmbH | EWP Truck Hire Pty Ltd |
In-app purchases
Fronius Solar.SOS
No in-app purchases
Down Under Bridge Units
No in-app purchases
Questions
Is Fronius Solar.SOS free?
Is Down Under Bridge Units free?
Do Fronius Solar.SOS or Down Under Bridge Units have ads?
Which is updated more often, Fronius Solar.SOS or Down Under Bridge Units?
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