Comparison

AC Service Tech LLC vs HVAC Pro Suite

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AC Service Tech LLC

This app provides a comprehensive platform for HVAC/R technicians and students to access educational resources. It features training videos, calculators, online courses with certificates, articles, and podcast episodes, all in one convenient location.

Highlights
  • Access online courses with certificates
  • Watch over 750 training videos
  • Utilize HVAC/R calculation tools
  • Read articles and listen to podcasts
  • Track learning progress
  • Downloadable training certificates
Features
Read full description

Access all of your HVAC/R education needs in one place with the AC Service Tech App! For HVAC/R techs and students of all levels, the AC Service Tech App offers an easy-access pathway to all of our Online Academy, Calculators, Training Videos, Articles, Podcast Episodes, and More. Find all you need to expand your knowledge of the trade right here—anytime, anywhere. Through our app you can: AC Service Tech HVAC Academy - Access our online course platform where you can take courses and earn certificates on topics including our 45 hour 2nd Edition Refrigerant Charging & Service Procedures for Air Conditioning Book Course, unit installation, IAQ, airflow, metering devices, and much more. Our courses include engaging videos with informative content from some of the top HVAC instructors in the industry. Downloadable certificates are available at the end of each course, displaying the hours of training you received. Our app makes it easy to access your account on all your devices and stay logged in so you can spend more time learning. Watch Videos - The AC Service Tech YouTube channel has produced over 750 educational HVAC/R training videos that can be easily accessed through our app. From step-by-step installations, procedural videos, troubleshooting, and much more, these training videos cover a wide variety of topics to help you improve in all areas of your HVAC/R career. Use Calculators - Quickly calculate target superheat, refrigerant weight, CFM, recovery bottle max weight, and nitrogen pressure testing through our calculator tools. Simply fill in the information fields for easy and accurate calculations. Access All of Our Educational Content - Bookstore, Articles, Podcast Episodes, Quizzes, and more are all easy to navigate and are available in one place. Direct Link to our Social Media channels for all the latest updates.

About

HVAC Pro Suite

Features
Read full description

HVAC Pro Suite brings HVAC learning, reference tools, and project workflows together for technicians, engineers, designers, and students. EPA 608 EXAM PREP • Practice Core, Type I, Type II, and Type III topics with explanations. • Take timed practice exams and revisit missed questions in a short practice session. • Browse reference material and track performance over time. LEARNING STUDIO • Study HVAC fundamentals, psychrometrics, refrigeration, air distribution, hydronics, and controls. • Explore AHU, refrigeration-cycle, psychrometric, and chiller-plant simulations. • Try service scenarios, measurement practice, system-building exercises, and controls activities. • Use engineering calculators and save calculation snapshots to a custom project. 3D EXPLORER • Explore a three-story commercial building and identify HVAC components. • Filter by floor and system, view diagrams, and follow illustrative airflow and chilled-water paths. • Explore the learning hub, system-design wizard, and refrigerant reference. WORKFLOW AND PROJECTS • Follow the Skyline Tower engineering case study and browse its drawing gallery alongside additional book illustrations. • Create custom projects from templates, record equipment and notes, and track milestones. • Use editable inspection, startup, and commissioning checklists with notes and photos. • Save calculation assumptions and results, then share a text project report. Search lessons, refrigerants, components, and reference material from the app hub and save favorites. The app is for education and reference. Verify designs, calculations, safety practices, and current requirements with applicable standards, manufacturer instructions, and qualified professionals.

Screenshots

AC Service Tech LLC4 screens
HVAC Pro Suite4 screens

Verdict

The call

The clearest difference is in-app purchases: AC Service Tech LLC at none against HVAC Pro Suite's 5. AC Service Tech LLC also leads on update cadence (every 3 weeks vs every 5 months). HVAC Pro Suite's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HVAC Pro Suite sells 5 one-off in-app purchases. AC Service Tech LLC asks for nothing beyond the download.

UpkeepUpdate frequency

AC Service Tech LLC ships an update every 3 weeks, HVAC Pro Suite every 5 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
AC Service Tech LLC versus HVAC Pro Suite: the parameters behind the verdict, then further details
ParameterAC Service Tech LLCHVAC Pro Suite
PriceFreeFree
Rating4.6 (5 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size45 MB417 MB
Age rating17+4+
DeveloperAC Service Tech, LLCYuhsiu Lai

In-app purchases

None

AC Service Tech LLC

No in-app purchases

5 purchases

HVAC Pro Suite

One-time5
  • HVAC License Exam$9.99
  • Learning Studio$9.99
  • 3D Explorer$9.99
Show 2 more
  • Workflow$9.99
  • All-Access Bundle$19.99

Questions

Is AC Service Tech LLC free?
AC Service Tech LLC is free to download, with no in-app purchases.
Is HVAC Pro Suite free?
HVAC Pro Suite is free to download, with in-app purchases available.
Do AC Service Tech LLC or HVAC Pro Suite have ads?
AC Service Tech LLC shows ads; HVAC Pro Suite does not.
Which is updated more often, AC Service Tech LLC or HVAC Pro Suite?
AC Service Tech LLC ships an update every 3 weeks, and HVAC Pro Suite every 5 months. Most recently, AC Service Tech LLC was updated on October 31, 2026 and HVAC Pro Suite on November 6, 2026.

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