VitroSphere™ vs Caluwin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VitroSphere™
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Time to See Further. Welcome to our world of glass. Explore, visualize, and compare our Solarban® products across different building typologies. Discover, with the touch of a button, the right color, reflectance and transparency for your next great project. Find product data, literature, and links to our other design tools created for you. Make yourself at home at The VitroSphere™.
Caluwin
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"Caluwin is an app for calculating window performance parameters according to DIN EN ISO 10077 and DIN EN13947. Key features: • Calculation of window Uw values according to DIN EN ISO 10077 1 • Calculation of surface temperatures and condensation risk in the glass edge area • Calculation of window energy savings for winter and summer conditions • Window energy ratings for Switzerland, Denmark, France, and the United Kingdom • Passive House efficiency assessment • Swisspacer Air simulation, including lifetime effects and elevated transport scenarios
Screenshots
Verdict
VitroSphere™ and Caluwin are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | VitroSphere™ | Caluwin |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 1.3 GB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Vidriera Monterrey, S.A. de C.V. | Saint-Gobain |
In-app purchases
VitroSphere™
No in-app purchases
Caluwin
No in-app purchases
