# Şişecam GlassTool vs PrefMeasure

The clearest difference is iOS requirement: PrefMeasure at 13.0 against Şişecam GlassTool's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Şişecam GlassTool ships an update every 5 months, PrefMeasure every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Şişecam GlassTool | PrefMeasure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/prefmeasure/id1501576205/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 0 MB | 106 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Şişecam](https://appshunter.io/developer/1114676456) | [Preference North America Inc.](https://appshunter.io/developer/1479590249) |

## What reviewers say

### Şişecam GlassTool

[App page](https://appshunter.io/ios/app/sisecam-glasstool/id1242184320)

Calculate the performance of various glass combinations for your projects. Easily create and customize glass setups, examine their properties, and save results as PDFs or templates. Access usage guidelines directly within the app.

**Highlights:** Calculate glass performance metrics, Create custom glass combinations, Examine performance of alternatives, Download results as PDF, Save and manage combinations, Use combinations as templates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PrefMeasure

[App page](https://appshunter.io/ios/app/prefmeasure/id1501576205)

This app allows window manufacturers and installers to create and edit measurements and configure sales documents on the go. It supports augmented reality, laser devices, and manual input for accurate dimension updates and order details.

**Highlights:** Create and edit measurements, Configure sales documents, Augmented Reality (AR) measurement, Laser Bluetooth Device support, Add/update order remarks and details, Create sales documents offline, Add pictures to line items

**In-app purchases:** none


## Frequently asked questions

### Is Şişecam GlassTool free?

Şişecam GlassTool is free to download, with no in-app purchases.

### Is PrefMeasure free?

PrefMeasure is free to download, with no in-app purchases.

### Do Şişecam GlassTool or PrefMeasure have ads?

Neither Şişecam GlassTool nor PrefMeasure shows ads.

### Which is updated more often, Şişecam GlassTool or PrefMeasure?

Şişecam GlassTool ships an update every 5 months, and PrefMeasure every 3 months. Most recently, Şişecam GlassTool was updated on November 2, 2026 and PrefMeasure on November 3, 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.*