250+ iOS apps curated and reviewed
HVACR Check & Charge is the household name in pressure temperature chart, but it's far from the only option. We track 250+ alternatives and competitors on iOS β many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8β (17K) | No | No | Aug 2026 |
| 2 |  | Free | 4.8β (52) | No | No | Aug 2026 |
| 3 |  | Free | 3.9β (52) | No | No | Aug 2026 |
| 4 |  | Free | 4.0β (8) | No | Yes | Aug 2026 |
| 5 |  | Free | 3.3β (7) | No | No | Aug 2026 |
| 6 |  | Free | 2.1β (18) | No | No | May 2026 |
| 7 |  | $1.99 | β | No | No | May 2026 |
| 8 |  | Free | 3.7β (3) | No | No | May 2026 |
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 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 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 tool provides HVAC technicians with instant access to pressure and temperature data for over 100 refrigerants. It allows users to input one value to find the other, view detailed refrigerant properties, and email comprehensive charts and data.
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 HVAC mechanics with a digital pressure-temperature chart. Select refrigerants to access necessary data and quickly calculate superheat and subcool averages for field tasks.
This reference tool provides HVAC mechanics with a digital pressure-temperature (PT) chart. Users can select refrigerants to access necessary data and quickly calculate superheat and subcool averages directly from their iPhone or iPad.
Easily record, track, and understand your blood pressure with this beautifully designed iOS app. Visualize your data with clear charts and access a health knowledge library for lifestyle tips. Share reports with your doctor in one tap.
Get comprehensive, up-to-date weather information for Switzerland. Receive forecasts, current measurements, and natural hazard warnings with customizable push notifications. Stay informed with weather animations, detailed reports, and a dedicated blog.
