# Roofing Ventilation Calculator vs EagleView Drone

The clearest difference is rating: EagleView Drone at 4.9 against Roofing Ventilation Calculator's 3.0. EagleView Drone also leads on update cadence (every 2 months vs every 3 months). Roofing Ventilation Calculator's advantage is iOS requirement (13.0 vs 15.6). On price, ratings volume, 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.

EagleView Drone holds the better App Store score, 4.9 against 3.0. Both are backed by a comparable volume of ratings — 6 and 9 respectively.

Roofing Ventilation Calculator ships an update every 3 months, EagleView Drone every 2 months. The most recent releases landed on June 19, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Roofing Ventilation Calculator | EagleView Drone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/roofing-ventilation-calculator/id1035643148/reviews) | **[4.9 (9 ratings)](https://appshunter.io/ios/app/eagleview-drone/id1490288599/reviews)** |
| Number of ratings | 6 | **9** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 34 MB | 383 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Compagnie de Saint-Gobain](https://appshunter.io/developer/543924473) | [Eagle View Technologies, Inc.](https://appshunter.io/developer/352070520) |

## 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


### EagleView Drone

[App page](https://appshunter.io/ios/app/eagleview-drone/id1490288599)

This app streamlines residential roof inspections for certified drone pilots using an intuitive interface. It enables fast, accurate, and consistent data collection for property assessments on compatible Apple devices.

**Highlights:** Residential roof inspections, Drone pilot interface, Fast data collection, Accurate assessments, Consistent reporting, iPad and iPhone compatible

**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 EagleView Drone free?

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

### Which has better reviews, Roofing Ventilation Calculator or EagleView Drone?

EagleView Drone is rated higher. Roofing Ventilation Calculator averages 3.0 out of 5 from 6 ratings, while EagleView Drone averages 4.9 from 9 ratings.

### Do Roofing Ventilation Calculator or EagleView Drone have ads?

Neither Roofing Ventilation Calculator nor EagleView Drone shows ads.

### Which is updated more often, Roofing Ventilation Calculator or EagleView Drone?

Roofing Ventilation Calculator ships an update every 3 months, and EagleView Drone every 2 months. Most recently, Roofing Ventilation Calculator was updated on June 19, 2026 and EagleView Drone on June 1, 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.*