11 Must-Have Apps For HVAC Professionals

Joe GalottiApril 27th, 2021

For just about every profession now there are apps available for download that can make your working life significantly easier. The HVAC industry is no exception. Below we’ll be sharing 11 of our favorite apps for those working HVAC jobs, and giving you the inside scoop on what each one has to offer.

Our List Of Top Apps For HVAC:


Available on IOS and Android- Free

No app does a better job of documenting and organizing your work time activity then CompanyCam. Technicians and their fellow team members can upload photos and videos from job sites to the app, and see their content get attached to a project, geotagged, date & time stamped and user attributed.

Top Features:

  • HVAC team members can easily find job site photos and videos through the app, and make comments and mentions for instant communication. 
  • CompanyCam’s edit mode allows users to add annotations to photos, and also markup photos to highlight what’s most important. 
  • Uploading video through the app allows HVAC workers to capture real-time footage of problems they come across and better explain to customers and co-workers what they are dealing with.

Learn more about CompanyCam here!

Contractor Estimate & Invoice

Available on IOS and Android- Free

When customers are learning about your business for the first time, price will always be a top concern. The sooner you can let a person know how much your services are likely to cost, the more comfortable they’ll feel about moving forward with hiring you. With the Contractor Estimate & Invoice app in hand, generating financial information for your business can be done in an instant.     

Top Features:

  • The app will allow you to create quick, professional estimates and invoices, and accept payments from any job site you may be working at. 
  • Users will get email notifications whenever an estimate they’ve created through the app is read by a customer. 
  • HVAC workers can attach photos and capture signatures through the Contractor Estimate & Invoice app, both of which will make proceeding with projects significantly easier.  

Learn more about Contractor Estimate & Invoice here!

HVAC Buddy

Available on IOS and Android- Cost: $9.99

HVAC Buddy is about to become your new best friend. This refrigerant charging and diagnostic app is designed for easy usage by HVAC professionals who are in the process of servicing equipment. 

Top Features:

  • Technicians can use this app with any kind of HVACR equipment, and feel confident in its ability to accurately diagnose and calculate proper refrigerant charges. 
  • Enter the refrigerant type, temperatures, and pressures you're dealing with, and HVAC Buddy will provide you with the “target, actual, and difference” for superheat, subcooling, and airflow. That data gets sent to app users via email afterwards. .  
  • HVAC Buddy also provides Airflow/Delta-T/TEET calculation, Imperial (IP) or Metric (SI) capabilities and the ability to diagnose leaks, overcharge and contaminants. 

Learn more about HVAC Buddy here!

HVAC Check & Charge

Available on IOS and Android- Free

The HVAC Check & Charge app has become a favorite tool of many on-site technicians. The product from the esteemed Emerson Climate Technologies company,  provides HVAC workers with an instant mobile refrigerant charge calculator for any HVACR applications they may come across.

Top Features:

  • This app allows technicians to easily calculate a charge using an Airflow calculator, Subcooling calculator (TXV), or Superheat calculator (non TXV).
  • Once users enter the system temperature, along with the sensible load and latent load, the Check & Charge app will be able to determine the proper system charge and inform technicians whether they need to make any other alterations based on the conditions. 
  • HVAC Check & Charge also offers imperial and metric support.

Learn more about HVAC Check & Charge here! 

HVAC Duct Sizer

Available on IOS and Android- Cost: $5.99 for IOS, $0.99 for Android

HVAC Duct Sizer has previously been voted as the favorite app of the readers of “Contracting Business” magazine, and is an absolute must-have for any technician that frequently works with ventilation systems. The tool’s “constant friction” method allows users to quickly size a range of duct sizes or focus on one HVAC duct run. 

Top Features:

  • The app provides its users with exact and rounded height/width dimensions, plus calculated velocity and friction loss.
  • HVAC Duct Sizer offers a wide variety of modes, which allow users to input multiple parameters, and find sizes that fall within the proper friction loss bounds. 
  • The app can be customized to meet a technician’s exact job site needs, as it provides specific parameters to work with such as the duct shape, air temperature and air pressure.

Learn more about HVAC Duct Sizer here! 

HVAC Load Plus

Available on IOS- Cost: $24.99

When determining what size HVAC unit to install, getting load calculations correct is crucial. The HVAC Load plus app may be a little on the pricey side, but it is an invaluable tool for calculating heating and cooling block loads in commercial and residential buildings. With this app as your guide, you’ll always get important details right. 

Top Features:

  • The app provides HVAC workers with a weather database for over 100 cities. 
  • HVAC Load Plus also provides data for hundreds of construction types, including walls, roofs, floors, doors, windows, skylights and ceilings.
  • Through the app, users can view comprehensive cooling and heating load reports including breakdown by opaque load, window load, skylight load, infiltration load, ventilation load and internal load contributions. 

Learn more about HVAC Load Plus here! 

HVAC Refrigerant PT 

Available on IOS and Android- Cost: $5.99 for IOS, $4.99 for Android

There will be a good portion of the year when you probably won’t need the HVAC Refrigerant PT app. But when air conditioner season does roll around, you’ll be extremely glad to have this tool in your pocket. The app has all the charts and information technicians need to execute their work in a timely fashion, and avoid work day meltdowns. 

Top Features:

  • The app offers a detailed list of physical properties for the refrigerant selected including classification, density, critical temperatures and pressures, specific heat, ozone depletion potential, safety rating, applications, and recommended lubricant for the refrigerant. 
  • Users will also find pressure/temperature charts for many common refrigerants used in the industry.

Learn more about HVAC Refrigerant PT here!

HVACR Fault Finder

Available on IOS and Google Play- Free

If you come across a problem during your work day, the HVACR Fault Finder will be one of your best tools in helping you identify and fix it. This app provides on-site compressor troubleshooting for air conditioning and refrigeration applications, and allows contractors to easily access compressor electronics product specifications.

Top Features:

  • When using the Fault Finder, technicians can choose to enter the flashing alert code from the electronics module or use a tap feature to help them with identifying the code. Entering these codes, gains users access to troubleshooting tips and tricks as well as an interactive flowchart to aid in diagnosing system problems.
  • The app also offers a wide variety of engineering guides and product manuals (and videos). 

Learn more about HVACR Fault Finder!


Available on IOS and Android- Free

HyTools is a hydronic calculator app specifically designed for those performing jobs involving radiant heating and cooling systems. The tool allows technicians to quickly optimize complex hydronic systems, by providing them access to simplified calculations and conversions

Top Features:

  • The app can be used for calculating flow Kv/Cv – pressure drop​, power – flow -  temperature difference and flow – valve setting – pressure drop.
  • It also provides technicians with pressure maintenance and vacuum degassing calculation and selection for heating, cooling and solar systems.
  • Also included is a dirt and air separator pressure drop calculation tool. 

Learn more about HyTools here! 

iHandy Level

Available on IOS and Android- Free

iHandy Level is a digital leveling device that is fully functional and equipped with fast calibration capabilities. Just follow the simple calibration instructions included with the app, and you’ll be ready to get to work. HVAC workers will likely be surprised by how much they end up using this app throughout their days. 

Top Features:

  • This app is built to work easily around slopes, angles and verticals, and will always provide you with a high degree of accuracy. 
  • The level is always available right from the smartphone in your pocket, leaving you with one less tool to carry around. 

Learn more about iHandy Level here! 


Available on IOS and Android- Free

Troubleshooting will be some of the most important work you do as an HVAC technician, and you’ll find few better apps than iManifold for helping you quickly resolve any critical issues your customers are facing. 

Top Features:

  • This app can calculate HVAC/R system performance and will troubleshoot system problems through user inputs and dynamic, live system data.
  • Users will be able to choose from more than 40 refrigerants and equipment profiling options.
  • The app comes equipped with live annualized savings analysis and a BTUH (British thermal units per hour) breakdown on the gauge screen.

Learn more about iManifold here! 

What’s your favorite HVAC app? Was it missing from our list? Tweet us @ring_savvy and let us know. 

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