249+ iOS apps curated and reviewed
If you already know Roof Ventilator, this is the deeper bench. 249+ roof ventilator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (6) | No | Yes | May 2026 | |
| 2 |  | Free | 3.0★ (6) | No | No | Jun 2026 | |
| 3 |  | Free | 4.5★ (11) | No | No | May 2026 | |
| 4 |  | Free | 4.0★ (6) | No | No | May 2026 | |
| 5 |  | Free | 4.3★ (4) | No | No | May 2026 | |
| 6 |  | Free | 2.3★ (3) | No | No | May 2026 | |
| 7 |  | Free | 4.2★ (407) | No | No | Sep 2026 | |
| 8 |  | Free | 2.4★ (8) | No | No | Aug 2026 |
This app calculates attic ventilation requirements based on your attic space and intake ventilation net free areas. It helps design ventilation systems to meet building code limits, suggesting vent quantities and types for optimal function. It also allows you to check existing systems and plan modifications.
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.
Calculate the number of roof vents needed for a balanced attic ventilation system. This app helps determine intake and exhaust options, roof pitch, and soffit panel requirements. It also provides product information and tools for Whirlybird installations.
