OpenSolar vs Reonic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenSolar
This free application provides a comprehensive solution for designing and selling solar energy systems. It offers end-to-end functionality for solar professionals.
- End-to-end solar design
- Sales application
- Free to use
- Comprehensive functionality
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OpenSolar is the world's first free, end-to-end, solar design and sales application.
Reonic
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All the most important Reonic functions, now also as an app: calendar, requests, offers, notes and files. And of course the heatload calculation.
Screenshots
Verdict
The clearest difference is update cadence: Reonic at fortnightly against OpenSolar's every 6 weeks. 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.
OpenSolar ships an update every 6 weeks, Reonic fortnightly. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.
| Parameter | OpenSolar | Reonic |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (10 ratings) — better | — |
| Positive reviews | 45.5% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.7 | 15.5 — better |
| Further details — not scored | ||
| Size | 216 MB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | OpenSolar Pty Ltd | Reonic GmbH |
In-app purchases
OpenSolar
No in-app purchases
Reonic
No in-app purchases
