# Roofing Ventilation Calculator vs GAF Master Flow QuickConnect

The clearest difference is rating: Roofing Ventilation Calculator at 3.0 against GAF Master Flow QuickConnect's 2.2. GAF Master Flow QuickConnect's advantage is update cadence (every 3 weeks vs every 3 months) and iOS requirement (11.0 vs 13.0). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Roofing Ventilation Calculator holds the better App Store score, 3.0 against 2.2. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Roofing Ventilation Calculator ships an update every 3 months, GAF Master Flow QuickConnect every 3 weeks. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Roofing Ventilation Calculator | GAF Master Flow QuickConnect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (6 ratings)](https://appshunter.io/ios/app/roofing-ventilation-calculator/id1035643148/reviews)** | [2.2 (10 ratings)](https://appshunter.io/ios/app/gaf-master-flow-quickconnect/id1625834749/reviews) |
| Number of ratings | 6 | **10** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 34 MB | 10 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Compagnie de Saint-Gobain](https://appshunter.io/developer/543924473) | [GAF Corp.](https://appshunter.io/developer/480463171) |

## What reviewers say

### Roofing Ventilation Calculator

[App page](https://appshunter.io/ios/app/roofing-ventilation-calculator/id1035643148)

Calculate the necessary amount of ventilation products for an attic space. Input attic dimensions or square footage to receive results based on the NFA 1/300 rule for balanced ventilation.

**Highlights:** Attic dimension input, Square footage input, NFA 1/300 rule calculation, Ventilation product quantity determination, Balanced ventilation planning

**Features:** macOS Compatibility

**In-app purchases:** none


### GAF Master Flow QuickConnect

[App page](https://appshunter.io/ios/app/gaf-master-flow-quickconnect/id1625834749)

Control your connected attic vent remotely via Wi-Fi using your smartphone or tablet. Monitor and adjust humidistat and thermostat settings to manage attic heat and moisture efficiently.

**Highlights:** Remote Wi-Fi control, Monitor humidistat, Adjust thermostat, Manage attic heat, Manage attic moisture

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Roofing Ventilation Calculator free?

Roofing Ventilation Calculator is free to download, with no in-app purchases.

### Is GAF Master Flow QuickConnect free?

GAF Master Flow QuickConnect is free to download, with no in-app purchases.

### Which has better reviews, Roofing Ventilation Calculator or GAF Master Flow QuickConnect?

Roofing Ventilation Calculator is rated higher. Roofing Ventilation Calculator averages 3.0 out of 5 from 6 ratings, while GAF Master Flow QuickConnect averages 2.2 from 10 ratings.

### Do Roofing Ventilation Calculator or GAF Master Flow QuickConnect have ads?

Neither Roofing Ventilation Calculator nor GAF Master Flow QuickConnect shows ads.

### Which is updated more often, Roofing Ventilation Calculator or GAF Master Flow QuickConnect?

Roofing Ventilation Calculator ships an update every 3 months, and GAF Master Flow QuickConnect every 3 weeks. Most recently, Roofing Ventilation Calculator was updated on October 3, 2026 and GAF Master Flow QuickConnect on October 9, 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.*