Pilkington Spectrum vs WindowViewer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Pilkington Spectrum
This application calculates key properties of insulating glass units, including light, solar, and sound insulation values. It provides detailed information on various glazing configurations and product ranges. Access technical contacts for further assistance.
- Calculate light and solar properties
- Determine centre pane U-value
- Assess sound insulation values
- Analyze UV transmittance and color rendering
- Evaluate impact resistance and fire resistance
- Access comprehensive product database
- Find technical contact information
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Pilkington Spectrum is a Windows-based glass performance model which enables you to quickly and efficiently calculate key properties of insulating glass units without the need to construct and measure them. You can use Pilkington Spectrum to provide the following information: - light and solar properties (transmittance, reflectance, absorptance, g value, etc.) in accordance with EN 410, - centre pane U-value in accordance with EN 673 (with an option to display the U-value to two decimal places), - sound insulation values in accordance with EN ISO 140-3 or generally accepted values from EN 12758, - ultra violet (uv) transmittance and colour rendering index (Ra) in accordance with EN 410, - other properties (e.g. pendulum body impact resistance, fire resistance, resistance to manual attack, etc.). This information is available for single glazing, insulating glass units (double, triple and quadruple glazing) and secondary glazing, or double window configurations. The database includes a comprehensive range of our products, provided by benefit-led category (e.g. solar control, thermal insulation, self-cleaning, solar control, etc.). We have also provided details of our relevant technical contacts, in case you require any additional technical information.
WindowViewer
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You are wondering how different colored windows will look in your home or how a new sliding door will look on the living room wall? When renovating you ask yourself many questions that are often difficult to answer when your own imagination is lacking. With the WindowViewer app, you can now answer these questions visually. Choosing new windows and doors has never been so easy: With the WindowViewer app, you can now quickly and easily visualize windows and doors and place them in your home using AR (augmented reality). This gives you a playful way to get a better impression of different window types, shapes, colors, etc. WindowViewer is the augmented reality app for window visualization: Using modern AR technology, you can easily visualize window elements in your immediate surroundings via your smartphone or tablet with the WindowViewer app. Place selected window and door elements in the preferred location in the room and change the desired parameters in an instant: Shapes, colors, handles, window sills, etc. Everything can be customized by you! Technical requirements: You need an internet-enabled smartphone or tablet to use the app. No registration is required for visualization. Never before has the selection of windows and doors been so easy to use. Just try it out!
Screenshots
Verdict
The clearest difference is ads: WindowViewer at none against Pilkington Spectrum's shown. Pilkington Spectrum's advantage is iOS requirement (9.3 vs 12.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.
| Parameter | Pilkington Spectrum | WindowViewer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | โ |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Monetization | Ad-supported | โ |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 โ better | 12.0 |
| Further details โ not scored | ||
| Size | 87 MB | 138 MB |
| Age rating | 4+ | 4+ |
| Developer | Pilkington Group Ltd | Digital Building Solutions GmbH |
In-app purchases
Pilkington Spectrum
No in-app purchases
WindowViewer
No in-app purchases
Questions
Is Pilkington Spectrum free?
Is WindowViewer free?
Do Pilkington Spectrum or WindowViewer have ads?
Which is updated more often, Pilkington Spectrum or WindowViewer?
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