# Roofing Ventilation Calculator vs Scope Technologies

The clearest difference is review sentiment: Scope Technologies at 67% against Roofing Ventilation Calculator's 0%. Scope Technologies also leads on rating (4.3 vs 3.0). Roofing Ventilation Calculator's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence 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.

Scope Technologies holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 6 and 12 respectively. Written reviews point the same way: 0% of Roofing Ventilation Calculator's written reviews are positive against 67% of Scope Technologies's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on June 19, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Roofing Ventilation Calculator | Scope Technologies |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/roofing-ventilation-calculator/id1035643148/reviews) | **[4.3 (12 ratings)](https://appshunter.io/ios/app/scope-technologies/id1608618967/reviews)** |
| Number of ratings | 6 | **12** |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 34 MB | 92 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Compagnie de Saint-Gobain](https://appshunter.io/developer/543924473) | [Jerod Raisch](https://appshunter.io/developer/1608618969) |

## 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


### Scope Technologies

[App page](https://appshunter.io/ios/app/scope-technologies/id1608618967)

This app provides contractors with remote property measurements and detailed roof reports using advanced roofing software. It enables real-time estimates, material takeoff from aerial measurements, and includes a roof pitch calculator for precise assessments. Users can also order reports directly from the app and brand them with their logo.

**Highlights:** Remote property measurements, Detailed roof reports, Real-time estimates, Material takeoff, Roof pitch calculator, Order reports from mobile, Custom branded reports

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

**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 Scope Technologies free?

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

### Which has better reviews, Roofing Ventilation Calculator or Scope Technologies?

Scope Technologies is rated higher. Roofing Ventilation Calculator averages 3.0 out of 5 from 6 ratings, while Scope Technologies averages 4.3 from 12 ratings.

### Do Roofing Ventilation Calculator or Scope Technologies have ads?

Neither Roofing Ventilation Calculator nor Scope Technologies shows ads.

### Which is updated more often, Roofing Ventilation Calculator or Scope Technologies?

Roofing Ventilation Calculator ships an update every 3 months, and Scope Technologies every 3 months. Most recently, Roofing Ventilation Calculator was updated on June 19, 2026 and Scope Technologies on September 8, 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.*