# DoubleGlazingApp vs QRSure

The clearest difference is update cadence: DoubleGlazingApp at every 3 weeks against QRSure's every 2 months. DoubleGlazingApp also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

DoubleGlazingApp ships an update every 3 weeks, QRSure every 2 months. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | DoubleGlazingApp | QRSure |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 9 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Infonote](https://appshunter.io/developer/381507445) | [TIMOTHY DOWDALL](https://appshunter.io/developer/1822577094) |

## What reviewers say

### DoubleGlazingApp

[App page](https://appshunter.io/ios/app/doubleglazingapp/id1455462117)

Easily measure and price new double glazing units at your own pace. Features an assistive measuring tool and allows direct submission of measurements to installers for the next stage of your inquiry.

**Highlights:** Measure double glazing units, Price double glazing units, Assistive measuring device, Submit measurements to installers, Professional assistance button

**Features:** macOS Compatibility

**In-app purchases:** none


### QRSure

[App page](https://appshunter.io/ios/app/qrsure/id6747717385)

**In-app purchases:** none


## Frequently asked questions

### Is DoubleGlazingApp free?

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

### Is QRSure free?

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

### Do DoubleGlazingApp or QRSure have ads?

Neither DoubleGlazingApp nor QRSure shows ads.

### Which is updated more often, DoubleGlazingApp or QRSure?

DoubleGlazingApp ships an update every 3 weeks, and QRSure every 2 months. Most recently, DoubleGlazingApp was updated on October 4, 2026 and QRSure on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*