22+ iOS apps curated and reviewed
The best bluon apps on iPhone average 4.7★ across 22+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (4.5K) | Yes | No | Sep 2026 | |
| 2 |  | Free | 4.8★ (17K) | No | No | Sep 2026 | |
| 3 |  | Free | 4.8★ (81) | No | No | Jul 2026 | |
| 4 |  | Free | 5.0★ (5) | No | No | Aug 2026 | |
| 5 |  | Free | 4.2★ (185) | No | No | Aug 2026 | |
| 6 |  | Free | 4.8★ (221) | No | Yes | Sep 2026 | |
| 7 |  | Free | 4.1★ (108) | No | No | Sep 2026 | |
| 8 |  | Free | 4.6★ (3.6K) | No | No | Sep 2026 |
Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.
This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.
This app serves as a comprehensive resource for HVAC technicians, offering a podcast, tech tip articles, and interactive calculators. It aims to enhance knowledge of HVAC theory, industry updates, and essential mathematics for both current and aspiring professionals.
