Comparison

Interplay Learning 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

Interplay Learning

This platform offers subscription-based training for skilled trades, creating job-ready workers and upskilling existing ones. Access hundreds of hours of expert-led content in HVAC, plumbing, electrical, and more, with on-demand assessments to track progress.

Highlights
  • Expert-led training content
  • On-demand assessments
  • Certification exam prep
  • Bite-sized training videos
  • Progress tracking
  • Anytime, anywhere access
Features
Read full description

Interplay Learning’s career development platform (formerly SkillMill) is a subscription-based solution that delivers always-on training, creating job-ready skilled trades workers and upskilling tenured workers faster and easier than ever before. Access hundreds of hours of expert-led training content in HVAC, Solar, Plumbing, Electric and Facilities Maintenance (and more). Plus, utilize on-demand assessments and knowledge checks to gauge team skills and identify key areas for improvement. With Interplay, you can: Expand knowledge and skills through training that can be accessed anytime, anywhere Learn directly from industry experts who understand what top technicians need to know Prep for EPA 608 and NATE certification exams or retain certification with approved CEU hours Master industry relevant skills quicker and more efficiently So that you’ll be able to: Take the next step in your trades career Develop skills and credentials Retain critical knowledge necessary to do your job safely and correctly With the Interplay Mobile App You Get: Bite-sized training videos for on-the-go learning On-demand quizzes and assessments to test your knowledge and find gaps The ability to pick up where you left off Just-in-time information when you need it the most Optimize your experience on a tablet, laptop or desktop Popular Courses Include: HVAC: Heat Pump Troubleshooting, Introduction to Rooftop Units, AC System Tools, Trades Math Electrical: How to Use a Multimeter, Fundamental Electrical Concepts, Introduction to Fire Alarms, Electrically Safe to Work Procedures Plumbing: Copper Pipe Joining Methods Lab, Principles of Backflow, Drain Cleaning Intro and Equipment Types Appliances:Garbage Disposal Troubleshooting, Refrigerator Troubleshooting, Ranges Overview Safety: Lockout/Tagout, Bloodborne Pathogens, Ladder and Fall Safety, Distracted Driving Solar: Solar Module Design, Mechanical Commissioning, Reading Schematics and Drawings Get to Know Us: https://www.interplaylearning.com

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

Interplay Learning4 screens
HVAC Pro Suite4 screens

Verdict

The call

The clearest difference is update cadence: Interplay Learning at every 2 months against HVAC Pro Suite's every 5 months. Interplay Learning also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support 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. Interplay Learning sells 1 in-app purchase, starting at $54.00 per month and HVAC Pro Suite sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interplay Learning ships an update every 2 months, HVAC Pro Suite every 5 months. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Interplay Learning versus HVAC Pro Suite: the parameters behind the verdict, then further details
ParameterInterplay LearningHVAC Pro Suite
PriceFreeFree
Rating3.8 (49 ratings) — better—
Positive reviews26.7% of reviews—
Number of ratings49 — better—
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size135 MB417 MB
Age rating4+4+
DeveloperInterplay Learning Inc.Yuhsiu Lai

In-app purchases

1 purchases

Interplay Learning

Subscriptions1
  • Individual Monthly14 Days trial$54.001 Month
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 Interplay Learning free?
Interplay Learning is free to download, with in-app purchases available.
Is HVAC Pro Suite free?
HVAC Pro Suite is free to download, with in-app purchases available.
Do Interplay Learning or HVAC Pro Suite have ads?
Neither Interplay Learning nor HVAC Pro Suite shows ads.
Which is updated more often, Interplay Learning or HVAC Pro Suite?
Interplay Learning ships an update every 2 months, and HVAC Pro Suite every 5 months. Most recently, Interplay Learning was updated on November 3, 2026 and HVAC Pro Suite on November 6, 2026.

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