Comparison

HVAC Licensing Exam vs HVAC Visual Learning Studio

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

Head to head
About

HVAC Licensing Exam

Prepare for your HVAC licensing exam with over 700 practice questions covering all essential subjects. This app offers offline study modes, allowing you to practice anytime, anywhere, and build confidence for your real exam.

Highlights
  • 700+ practice questions
  • Offline preparation tool
  • Four study modes
  • Covers all exam subjects
  • Risk-free practice environment
  • Regularly updated questions
Features
Read full description

Take the HVAC Licensing Practice Exams and sharpen your skills in preparation for your real exam. You’ll be challenged with hundreds of questions from every subject. Qualification covers all areas from the current questions pool ! Effective offline preparation tool for your Mechanical Code and gas code exams, this App is designed to help you pass the exam on your first attempt! - Perfect for anyone wanting to practice for their exam - Take the practice exam as many times as you want in a safe, risk-free environment - Practice anywhere no internet connection required - Each exam is different, providing you with access to a variety of questions - New questions are added regularly Key features: - Four Study Modes: Study, Practice, Stress Test and Mock Exams - No Internet connection required after download - App works on both iPad and iPhone at no extra cost - Slick fast app to help you pass first time ! Subject covered in this app: - Air Conditioning - Commercial Air Conditioning - Commercial Refrigeration|Electric Heat - Oil and Combustion|Green Awareness - Heat Pump Installation - Heat Pump Service - Principles of Electrical and Refrigeration Theory - Residential Heat Load Calculation - Universal R-410A Safety and Training .....and many MORE ! A superb revision app and confidence builder for challenging question types.

About

HVAC Visual Learning Studio

Features
Read full description

HVAC Visual Learning Studio is the engineering toolkit, refrigerant database, animated simulation lab, and visual reference library that working HVAC engineers actually use. This is NOT a generic learning template. Every screen — calculators, refrigerants, simulators, illustrations, projects — is specifically built around the daily work of HVAC design, troubleshooting, and controls. WHAT MAKES THIS APP DIFFERENT → HVAC ENGINEERING CALCULATORS (NEW in v3.0) Eight production-ready calculators with live sliders: - Sensible heat load (q = 1.08 × CFM × ΔT) - Latent heat load (q = 4840 × CFM × ΔW) - Mixed air temperature - Duct sizing (equal-friction method) - Pump friction head loss - Refrigerant superheat & subcooling diagnostic — with charge interpretation - Annual cost of operation from EER, tonnage, and electricity rate - Sensible Heat Ratio classifier Every input drives the result live. No spreadsheet required. → REFRIGERANT DATABASE (NEW in v3.0) Nine common refrigerants compared side-by-side: R-22, R-410A, R-134a, R-32, R-454B, R-1234yf, R-290 (propane), R-744 (CO₂), R-717 (ammonia). For each: ASHRAE 34 safety class, GWP, ODP, critical properties, typical operating pressures, applications, and engineering notes. Filter by family — HFC, HFO, blend, or natural. Tap any card for the full datasheet. → HVAC SIMULATION LAB Four animated simulators built specifically for HVAC: - AHU Simulator — airflow particles, spinning supply fan, modulating dampers, virtual zone thermostat - Refrigeration Cycle on a P-h diagram with live COP and EER - Psychrometric Chart with live state plotting and process lines - Chiller Plant with staging logic, cooling tower, animated water flow → ILLUSTRATED REFERENCE GALLERY 56 high-resolution HVAC diagrams across 11 categories: whole-house residential, multi-unit, commercial, industrial, ventilation, controls, documentation. Full-screen viewer with pinch-zoom. → CURRICULUM Six modules: HVAC Fundamentals, Psychrometrics, Refrigeration, Air Distribution, Hydronics, and Controls/DDC. Lessons include code examples, quizzes, and bookmarks. → DESIGN PROJECTS Six worked examples: residential Manual J, single-zone RTU sequences, VAV with reheat and pressure reset (ASHRAE Guideline 36), chiller plant design, school DOAS+ERV, heat-recovery VRF. → SEARCHABLE REFERENCE Psychrometric equations, refrigerant properties, ASHRAE standards summaries, BACnet object types — searchable by keyword. BUILT FOR - HVAC design engineers running daily calculations - Building automation and DDC professionals - Energy auditors and commissioning agents - HVAC technicians studying for NATE, EPA 608, or PE exams - Mechanical engineering students - Architects who want to actually understand the systems they spec WHAT'S NEW IN v3.0 - HVAC Calculators tab — 8 engineering calculators (new tab on the bottom bar) - Refrigerants tab — 9-refrigerant searchable database (new tab on the bottom bar) - What's New screen on first launch highlighting the new features - Updated illustrated gallery to 56 diagrams across 11 categories This app is an educational reference. Always verify with current ASHRAE standards, manufacturer data, and local codes before designing or installing equipment.

Screenshots

HVAC Licensing Exam4 screens
HVAC Visual Learning Studio4 screens

Verdict

The call

The clearest difference is update cadence: HVAC Visual Learning Studio at fortnightly against HVAC Licensing Exam's every 40 months. HVAC Visual Learning Studio also leads on price ($2.99 vs $8.99). HVAC Licensing Exam's advantage is iOS requirement (11.0 vs 17.0). On 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

HVAC Licensing Exam costs $8.99 and HVAC Visual Learning Studio $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

HVAC Licensing Exam ships an update every 40 months, HVAC Visual Learning Studio fortnightly. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 6 level
HVAC Licensing Exam versus HVAC Visual Learning Studio: the parameters behind the verdict, then further details
ParameterHVAC Licensing ExamHVAC Visual Learning Studio
Price$8.99$2.99 — better
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 40 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size61 MB146 MB
Age rating4++4
DeveloperAdnan SheikhYuhsiu Lai

In-app purchases

None

HVAC Licensing Exam

No in-app purchases

None

HVAC Visual Learning Studio

No in-app purchases

Questions

Is HVAC Licensing Exam free?
HVAC Licensing Exam costs $8.99, with no in-app purchases.
Is HVAC Visual Learning Studio free?
HVAC Visual Learning Studio costs $2.99, with no in-app purchases.
Do HVAC Licensing Exam or HVAC Visual Learning Studio have ads?
Neither HVAC Licensing Exam nor HVAC Visual Learning Studio shows ads.
Which is updated more often, HVAC Licensing Exam or HVAC Visual Learning Studio?
HVAC Licensing Exam ships an update every 40 months, and HVAC Visual Learning Studio fortnightly. Most recently, HVAC Licensing Exam was updated on October 4, 2026 and HVAC Visual Learning Studio on October 13, 2026.

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