250+ iOS apps curated and reviewed
If you already know Roof Ventilator, this is the deeper bench. 250+ roof ventilator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (6) | No | Yes | May 2026 | |
| 2 |  | Free | 4.5★ (11) | No | No | May 2026 | |
| 3 |  | $0.99 | 1.5★ (2) | No | No | Oct 2026 | |
| 4 |  | Free | 3.0★ (6) | No | No | Jun 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | — | No | No | Jul 2026 | |
| 7 |  | Free | — | No | Yes | Jun 2026 | |
| 8 |  | Free | — | No | No | May 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 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.
Calculate roof and rafter lengths, plumb and foot cut angles, and roof areas. Supports both metric and imperial measurements for various roofing projects.
