250+ iOS apps curated and reviewed
If you already know Ref Tools, this is the deeper bench. 250+ danfoss pt chart 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 | 3.8★ (47) | No | No | Aug 2026 |
| 2 |  | Free | 3.7★ (3) | No | No | May 2026 |
| 3 |  | Free | 4.8★ (51) | No | No | Jul 2026 |
| 4 |  | Free | 3.3★ (7) | No | No | May 2026 |
| 5 |  | Free | 4.8★ (17K) | No | No | Aug 2026 |
| 6 |  | Free | 4.8★ (4.5K) | Yes | No | Aug 2026 |
| 7 |  | Free | — | No | No | Jun 2026 |
| 8 |  | Free | — | No | No | Jun 2026 |
This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.
This app helps HVACR technicians diagnose and resolve system issues. It guides users through common symptoms, identifies potential causes, and recommends solutions. An offline database is available for use in remote locations.
This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.
This app offers on-the-go pressure and temperature conversions for refrigerants. Easily find saturated pressure based on temperature or saturated temperature based on pressure. It's a free tool for iPhone and iPad.
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.
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.
