10 Best HVAC Apps for Technicians in 2024

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Blog summary

Integrating apps in routine business raises the chances of scalability. The things which are beyond our control can be done easily by apps. Learn about the top 10 HVAC apps & attain profitability.

The HVAC industry is rising, and the data presented by Forbes justify the facts. It states that by the end of 2030, job growth will rise by 8%, with the opening of 38,500 employment opportunities for mechanics and installers every year.  

However, with the rising demand, you need professional tools and technologies to handle the industry and customer demands.

Various HVAC apps are available in the industry. You need to choose the suitable ones which suit your business requirements.

Our team has picked the best HVAC apps to transform your HVAC service business and help you stand out.

So without further ado, let’s explore the apps one by one.

Comparison of 10 Best HVAC Apps

HVAC Apps Available On Pricing Ratings
Most PreferredInvoiceOwl
  • Monthly: $28.99
  • Yearly: $99.99
fieldcamp Start Plan
  • $29/month
  • $348/year
Grow Plan
  • $49/month
  • $588/year
Manage Plan
  • $99/month
  • $1188/year
HVAC Duct Sizer Apple App Store
  • $5.99
Google Play Store
  • $0.99
square invoice Apple App Store
  • Free available
In-App Purchases
  • HVAC Premium – $6.99
  • HVAC Basic – $4.99
jobber Core
  • $39/month
  • $119/month
  • $239/month
Gemaire HVAC contractor assist Free available on iOS and Android 4.7/5
quick Simple Start
  • $20/month
  • $40/month
  • $70/month
  • $150/month
  • Monthly $19.95
  • Yearly $179.40 /year
hvac check and charge Free available 4.8/5
hvac buddy
  • $9.99 on Apple App Store

1.  InvoiceOwl 

InvoiceOwl is the leading estimating &  invoicing software for contractors that helps you streamline your business finances and ensure that you have centralized control over the cash flow.


The software offers a wide array of features. Look at the top features offered by InvoiceOwl to transform your HVAC business.

  • The user-friendly interface: A user, especially one who is not tech-savvy, can smoothly navigate through the website.
  • Customization: Generating customized as well as professional-looking estimates & invoices can make the contractors stress-free while adding their company information or promoting their brand.
  • Instant feedback:  Because of the automatic review request generation after the invoicing and payment flow, you can know your target audience better and can work on pain points.
  • Automate reminders: InvoiceOwl facilitates sending reminders to your customers:
    • when the estimates are not signed,
    • or invoices are due for payment
  • Insights on financial performance: Generating monthly or quarterly sales reports will help you find out the financial health of your HVAC business. 
  • Multi-company: If you are one of those contractors who manage more than one company (for instance, HVAC, snow removal, electrical, or anything), then InvoiceOwl is the only platform helping you maintain all your businesses (upto 5 companies) under the same platform.

(Note: This is for Champion users only)

    Manage Multiple Companies Under One Roof with InvoiceOwl 

    With the multi-company features:

    • Quickly switch between your companies
    • Import the data from existing ones
    • Compare the financial performance between two companies
    • Get centralized data of all your businesses in one place
  • Integrations: InvoiceOwl is synced with one of the best accounting software, Quickbooks Online, for seamless accounting operations.
  • Client management: You can store information about different clients, like their contact names, phone, addresses, and previous transaction details that help you make better future decisions.
  • Go paperless: You can bypass the manual dependency of using pen and paper for sending estimates and invoices. The e-signing feature helps you digitally sign the estimates and invoices from anywhere and anytime.
Pros Cons
  • Multiple templates for HVAC estimates & invoices.
  • Can export in different file extensions (PDF, CSV, and XLS).
  • User-friendly and simple interface.
  • Can digitally sign the estimates & invoices
  • Multiple payment gateways
  • You may have issues with font size sometimes.

In short, if you are looking for an HVAC app that helps you make your business operations like invoicing, estimating, client communications, and financial report generation simple and sorted, the InvoiceOwl app is the only app you need.

Want to Save Time While Creating Estimates and Invoices?

InvoiceOwl provides HVAC estimate templates to create professional-looking invoices in just a tap.

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2. FieldCamp

FieldCamp is another invoicing software for HVAC you can use to manage your HVAC field services. With a few clicks, you can extract the details of your HVAC professionals to help you manage your resources effectively.


It provides excellent back-end support to handle your business workflow and ensure that you deliver the highest quality service to your employees.

You can create professional HVAC systems to manage your daily business operations. You can get a centralized view using the powerful dashboard that can save 95% of the time managing your HVAC field service.

The HVAC service app provides GPS tracking that can help you share the live locations of your team with your clients to maintain great transparency. It can enable HVAC businesses to communicate with an on-ground HVAC professional to bypass dynamic situations that can hinder the business workflow.

Your HVAC techs can quickly adapt to the smooth interface as it offers features like.

  • Payment processing
  • Job scheduling and dispatching
  • Staff management
  • Invoice management
  • Generating business reports
  • Customer management

You can access the 14-day trial to experience the ins and outs of the software before making the purchase decision.

Pros Cons
  • Mobile access.
  • One-click dispatching.
  • Manage tasks easily.
  • Voice-to-text functionality
  • No third-party integration.

3. HVAC Duct Sizer

The HVAC Duct Sizer app can enable you to calculate the size of the duct using the airflow and dimensions. Being one of the leading HVAC calculator apps, duct sizer uses the constraint friction method to focus on a single HVAC duct size or run.

hvac duct sizer app

The HVAC duct sizer app is a digital alternative to the traditional Trane ductulator that can assist you in analyzing results based on the input data. It is a universal duct sizing application that offers different features to help you analyze the rangeland size of the duct.

You can provide the rounded height, width, friction loss, and velocity of the existing duct system to help the application calculate the duct size. The app can display specific duct size ranges and is a quality tool for HVAC technicians on the job site.

Pros Cons
  • Delivers excellent results.
  • Can minimze the effort of an HVAC tech.
  • Intuitive UI/UX of the application.
  • Limited usage benefits in the HVAC business.

4. HVAC Practice Test

It is the best HVAC educational tool that enables different HVAC businesses to train their workforce and help them enroll in a digital HVAC school for skill enhancement. It’s one of the best HVAC learning apps and offers exam questions just like you’d get in a traditional HVAC school.

hvac practice test

Like with the HVAC flashcards app, you can access the different learning modes, practice tests, and much more. The HVAC school app can help analyze an HVAC professional’s strengths, skills, and weaknesses of an HVAC professional.

You can extract statistical HVAC exam results to improve your team’s skills, which can help you achieve excellent HVAC service results. This will also make you one of the leading HVAC companies on the market.

The application offers easy-to-read text to grasp the information quickly and apply theoretical knowledge in the HVAC industry.

Pros Cons
  • Great for HVAC skill enhancements.
  • Detailed questions and exam tests.
  • A balance of technical and soft skill learning.
  • The UI/UX needs improvement.

5. Jobber

Jobber is a professional field service management software that can help minimize your HVAC business’s time and energy and boost its work efficiency. The mobile app is extremely useful and offers great features that can be utilized to manage your HVAC resources, HVAC equipment, and other significant business operations.


It’s an all-in-one solution that can assist you with your HVAC business operations and streamline the business flow and operations.

The application can help you deliver a quality customer experience by managing, scheduling, invoicing, and dispatching your workforce. You can skyrocket your productivity and strengthen your in-house communication with your team to deliver efficient business results.

Jobber offers GPS tracking, real-time tracking, generating invoices, following up on assigned tasks, and robust communication.

Pros Cons
  • You can easily edit the information of the service task.
  • A great tool to optimize routes and keep your workforce updated.
  • You can check the customer history within a few clicks.
  • Easily accessible.
  • Is a bit expensive.
  • You can’t restore the deleted history.

6. HVAC Assist by GEMAIRE 

HVAC Assist is a free Android and iOS application created by GEMAIRE to enable HVAC technicians to provide detailed product information and the tools required to operate on those products.

gemaire hvac contractor assist

It offers a quick sign-in feature to access your accounts and uses a password, Face ID, or touch ID to log into your account later.

It’s one of the leading HVAC service apps that enables the HVAC tech to view the availability of the HVAC equipment in the store and stay up to date with the delivery time of the requested orders.

Your team can avail of the required equipment to deliver a professional HVAC service to your clients and ensure that there are no delays in your service. You can avoid a poor service experience due to the unavailability of professional HVAC service equipment.

Pros Cons
  • Detailed HVAC equipment description is available.
  • Smooth and intuitive interface.
  • Different login options for quick account access.
  • Limited equipment and product range.

7. QuickBooks Online

It is professional accounting software that can help you save time and effort to focus on different business chores that can scale your HVAC operations.

quickbooks online

You can create and manage multiple invoices within a few clicks using the mobile application or the powerful desktop version of the software. You can design a customized template for your HVAC invoicing to simplify bulk invoice generation.

You can schedule monthly invoices for your long-term HVAC clients that can enable you to deliver excellent services to your retained clientele. You can automate the invoicing and bypass the troubles of forgetting to send invoices to your customers.

Being one of the best HVAC apps, it can keep the accounts of your vast clientele and help you create separate accounts for management. The HVAC app provides quick access to the information needed to manage your HVAC business efficiently.

You can use QuickBooks payments to enable the client with quick payments and faster invoice processing. You can add different products or services and accurate costs while invoicing, which can help you earn great profits.

Pros Cons
  • TurboTax compatibility.
  • Excellent bookkeeping.
  • All-in-one invoicing software.
  • Bank account syncing issues.

8. iManifold

It is a professional application that helps HVAC technicians achieve effective and precise results. iManifold can help with hydronic calculations, HVAC/R system efficiency, and other important HVAC business elements for great troubleshooting results.


It is one of the most effective HVAC troubleshooting apps that can deliver in-depth reports for better service outcomes. It offers different HVAC calculators, over 40 refrigerants, and equipment profiling options to help you extract the correct refrigerant charge and deliver quality service results.

The app has British thermal units per hour breakdown and a live annualized savings analysis to provide a holistic view of the problem. You can manage your services like air conditioning, heating, and cooling systems, refrigerant charging, hydronic distribution systems, and ventilation systems.

The HVAC software helps you strengthen your HVAC systems and ensure that your technicians have the best technology access for better service delivery.

Pros Cons
  • One of the leading HVAC load calculations apps for mobile
  • A professional HVAC troubleshooting app that delivers precise results.
  • The interface is smooth, and the features are excellent.
  • Niche-focused mobile app.

9. HVAC Check & Charge

A free mobile application that can be used by HVAC technicians on their iOS and Android mobile devices. You can calculate the customer’s HVAC system refrigerant charge like the HVAC Refrigerant PT. It is a powerful and quick calculator that can estimate and deliver accurate results.

hvac check & charge

You can use applications for R-410A, R-32, R-407C, R-22, and R-134a, including other refrigerants. You need to choose from subcooling, HVAC superheat calculator, or airflow calculators and input the details of the system latent load, temperature, and sensible load.

As one of the professional HVAC business apps, Check & Charge enables you to determine the system charge and update you on whether there’s a need for more alterations based on the current scenario.

You can use the app to calculate air conditioning and refrigeration charges and deliver the HVAC load based on the live system data.

Pros Cons
  • Covers a wide range of refrigerants.
  • Can deliver accurate and professional results.
  • Determine the system charges effectively.
  • The interface is not smooth.

10. HVAC buddy

One of the best HVAC apps, HVAC Buddy, is a professional application you can use to optimize your HVAC business operations. It makes it easier for your technicians to charge and diagnose refrigerators.

hvac buddy

You can use the application to troubleshoot the HVACR equipment and calculate the refrigerant charge precisely.

You must enter the refrigerant temperature, pressure, and type once you start troubleshooting. The application displays the different targets for airflow, subcooling, and superheating.

The HVAC app offers a fully-fledged system status report with the help of troubleshooting data to enable you to deliver a professional and excellent HVAC customer experience.

Being a professional HVAC app, it is the most reliable application for handling HVAC jobs as it displays charts, historical values, and other professional updates to boost your accuracy and efficiency.

HVAC Buddy also analyzes the airflow and compares the targeted difference on the coil. The information provided by the HVAC app can be used by on-ground technicians to quickly spot the areas needing improvement and perform the required task, saving their effort and time.

It’s one of the limited HVAC apps that can help your HVAC technicians remove the guesswork and efforts involved in manual troubleshooting.

Pros Cons
  • Provides precise and accurate HVAC data.
  • It also analyzes the airflow and other vital HVAC components.
  • The features can be accessed quickly, and the application is highly responsive.
  • It only focused on HVAC technicians.

Why InvoiceOwl Over Other Apps?

InvoiceOwl is providing all the necessary solutions at one place for your estimating and invoicing processes. You are served with free online estimating and invoicing generator, customized templates, real time notifications that help you remain updated, quick payment reminders, easy user-interface for the ones who are not so profound tech geeks and the most significant e-signing feature for going paperless whenever you sign the estimates or invoices

So when you are getting all these at one place why will you jump over other apps?

Along with all the solutions mentioned above it still offers wide array of features which you go and check here.

After analyzing all the HVAC apps mentioned above, you can surely go with InvoiceOwl. Here are a few features (along with the ones mentioned above) justifying the above statement that why InvoiceOwl should be kept above others:

1. Record of paid or unpaid invoices

2. In-app emailing of estimates & invoices

3. Quickbooks online sync

4. Multi-company option

5. Track all your finances

6. Customization in estimate & invoice designing/document available

7. Quick bid option for estimates

8. Multi-currency option

Frequently Asked Questions
  1. Are HVAC apps costly?

    The price of the HVAC apps varies depending on the software features. You need to review the pricing of different HVAC apps to ensure that they fit your budget.

  2. How much does a professional HVAC software cost?

    Depending on the type of software you choose and the features you unlock, the price of the HVAC software can vary.

  3. Which is the best HVAC app in the market?

    You can choose multiple HVAC apps to help you minimize manual business operations and automate redundant processes. You can choose leading apps like InvoiceOwl, and FieldCamp, among others, for your business success.

  4. Why are HVAC apps necessary for the HVAC service business?

    HVAC apps can help you minimize time and effort while managing your daily business operations. You can extract the desired result based on the app you integrate into your business ecosystem.


Now that you have analyzed the best HVAC apps, it’s time you tailor a few applications based on your budget and business requirements.

But if you feel that choosing multiple software at once can be difficult, then we recommend you at least choose one.

And you won’t find a better option than InvoiceOwl, which can assist you in handling your HVAC financial management with finesse.

Author Bio
Jeel Patel
Jeel Patel

Jeel Patel is the founder of InvoiceOwl, a top-rated estimating and invoicing software that simplifies the invoicing and estimating processes for contractor businesses. Jeel holds a degree in Business Administration and Management from the University of Toronto, which has provided him with a strong foundation in business principles and practices. With understanding of the challenges faced by contractors, he conducted extensive research and developed a tool to streamline the invoicing and estimating processes for contractors. Read More

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Washington D.C.