218+ iOS apps curated and reviewed
If you already know HVACR Check & Charge, this is the deeper bench. 218+ refrigerant calculator app apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 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 reference tool converts pressure and temperature for industrial refrigeration. It supports common refrigerants like ammonia and freon, allowing professionals to easily calculate values such as overheating for compressors and condensers.
This tool quickly determines refrigerant data, including properties, safety groups, GWP, and ODP. It offers intuitive temperature-to-pressure conversion and supports both metric and imperial units. Access detailed information and links to online resources for over 100 refrigerants.
This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.
This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.
This mobile application provides HVACR service technicians with accurate refrigerant data on the go. It allows for quick system diagnostics and response by calculating pressure-temperature relationships, superheat, and subcooling. Supports various refrigerants, including newer HFOs and older HFCs/HCFCs.
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 both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.
This app provides HVACR professionals with essential tools for refrigerant management. It offers electronic PT charts, subcooling and superheat calculations, and detailed information on refrigerants. Users can also validate product authenticity and access educational videos.
This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.
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.
A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.
A highly customizable calculator app offering a modern interface and powerful features. Personalize themes, button layouts, and visual elements to your preference. Track and save calculations with a detailed history, and access scientific functions when needed.
This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.
This app combines five essential calculation tools into one convenient package. It offers standard, scientific, unit conversion, loan, and tip calculators with a user-friendly interface and large buttons. Available on multiple Apple devices, it streamlines everyday calculations.
This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.
A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.