Comparison

HVAC practice test vs HVAC Know It All

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

Head to head
About

HVAC practice test

Prepare for HVAC certification exams with extensive practice questions and flashcards. Track your progress, identify strengths and weaknesses, and study effectively with detailed analytics and a personalized review calendar. Access study materials offline and in dark mode.

Highlights
  • +2000 expert-written practice questions
  • Detailed analytics of strengths and weaknesses
  • Personalized daily review calendar
  • Offline mode access
  • Dark mode support
  • Flashcards for critical concepts
Features
Read full description

With HVAC Test Pro, you can study with our Free HVAC practice tests, flashcards, and score reports with detailed analytics. Best of all, you can access these features anywhere and anytime when you download our app. This app helps you learn the critical concepts tested on the HVAC Test Pro with detailed flashcards and practice questions. As you practice questions with HVAC test online 2022, the app tracks your performance and highlights your test strengths and weaknesses, helping you zero in on what you need to study in order to boost your HVAC test score. Major Features: - Practice with +2000 questions written by expert tutors which cover all sections of the heating, ventilation, and air conditioning exam: HVAC Basics HVAC Controls HVAC Electrical Basics HVAC Oil and Gas Heating HVAC Journeyman IMC Code - Get high score in the HVAC exam, which focuses on preparing the best background for users. - Track your strengths and weaknesses with our in-app analytics - Detailed statistics of your progress for every question - Daily review calendar based on your study - Support offline mode - Support dark mode - Connect with other learners Contact us: We'd love to hear from you. Please send your feedback to loxo.contact@gmail.com --- Privacy Policy: https://hvacprep.com/privacy/ Terms of Use: https://hvacprep.com/terms/

About

HVAC Know It All

Connect with HVAC/R professionals to enhance your skills through educational discussions. This app aims to help technicians, installers, owners, educators, and students improve their expertise in the trade.

Highlights
  • Educational discussions
  • Professional networking
  • Skill enhancement
  • Trade knowledge sharing
  • Technician resources
Read full description

HVAC Know It All is a community of HVAC/R professionals. The goal, through educational discussion, is to become better technicians, installers, company owners, educators and students of the trade. PRICING INFORMATION: This app has a 7 day free trial after which a subscription of $0.99 monthly OR $9.99 yearly is required in order to access the entire app. • Payment will be charged to your iTunes Account at confirmation of purchase. • Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. • Your account will be charged for renewal within 24-hours prior to the end of the current period. • You can manage your subscriptions and turn off auto-renewal by going to your iTunes Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Please find a link to the Privacy Policy below: https://bluecollarguru.disciplemedia.com/privacy_policy Please find a link to the Terms of Service below: https://bluecollarguru.disciplemedia.com/terms_and_conditions

Screenshots

HVAC practice test4 screens
HVAC Know It All3 screens

Verdict

The call

The clearest difference is monetization model: HVAC practice test at free with in-app purchases against HVAC Know It All's subscription. HVAC practice test also leads on update cadence (every 2 months vs every 6 months) and device support (3 vs 1). HVAC Know It All's advantage is review sentiment (84% vs 57%). On price, rating, ratings volume and ads 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 practice test sells 2 in-app purchases, starting at $4.99 per year and HVAC Know It All sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

HVAC Know It All holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 446 and 224 respectively. Written reviews point the same way: 57% of HVAC practice test's written reviews are positive against 84% of HVAC Know It All's.

UpkeepUpdate frequency

HVAC practice test ships an update every 2 months, HVAC Know It All every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
HVAC practice test versus HVAC Know It All: the parameters behind the verdict, then further details
ParameterHVAC practice testHVAC Know It All
PriceFreeFree
Rating4.6 (446 ratings)4.8 (224 ratings) — better
Positive reviews57.1% of reviews83.7% of reviews — better
Number of ratings446 — better224
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.0 — better17.0
Further details — not scored
Size143 MB67 MB
Age rating4+17+
DeveloperHung NguyenHVAC Know It All Inc.

Customer experience

HVAC practice test

All ratings445 ratings
Positive91.5%
Neutral5.6%
Negative2.9%
Written reviews21 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

HVAC Know It All

All ratings221 ratings
Positive95.5%
Neutral0.9%
Negative3.6%
Written reviews49 reviews
Positive83.7%
Neutral0.0%
Negative16.3%

User reviews

HVAC practice test

From 446 App Store ratings

What we love

  • 👍 Good for beginners
  • 👍 Useful for practice
  • 👍 Good for staying sharp
  • 👍 Useful content for studying
  • 👍 Nice app for new techs

Room to improve

  • 🐛 Poorly worded questions
  • 🐛 Errors throughout the app
  • 🐛 Incorrect information
  • 🐛 Questionable wording
  • 🐛 Sentence fragments in questions

HVAC Know It All

From 224 App Store ratings

What we love

  • 👍 Excellent community for tradespeople
  • 💡 Vast knowledge sharing among professionals
  • 🚀 Game-changer for HVAC technicians
  • 🤝 Supportive and non-judgmental environment
  • 📚 Great resource for learning and growth

Room to improve

  • 💰 Forced to pay before accessing content
  • 🤔 Subscription fee not clearly stated upfront
  • 🚫 App makes you pay before you can test it
  • 📉 Limited content in residential group
  • ❓ Suspect 5-star reviews, potentially fake

Bugs and requests

HVAC practice test

Reported bugs

4 issues
  • Errors throughout the app
  • Wrong or conflicting answers
  • Numbers are off
  • Ads get in the way of buttons

Requested features

4 requests
  • Provide explanations for correct answers
  • Translate to French
  • Add more practice sections (e.g., static pressure, duct systems)
  • Revise incorrect answers and get expert insight

HVAC Know It All

Requested features

1 request
  • More content for the residential group

In-app purchases

2 purchases

HVAC practice test

Subscriptions2
  • HVAC Basic$4.991 Year
  • HVAC Premium$6.991 Year
2 purchases

HVAC Know It All

Subscriptions2
  • Monthly Subscription7 Days trial$0.991 Month
  • Yearly Subscription7 Days trial$9.991 Year

Questions

Is HVAC practice test free?
HVAC practice test is free to download, with in-app purchases available.
Is HVAC Know It All free?
HVAC Know It All is free to download, with in-app purchases available.
Which has better reviews, HVAC practice test or HVAC Know It All?
HVAC Know It All is rated higher. HVAC practice test averages 4.6 out of 5 from 446 ratings, while HVAC Know It All averages 4.8 from 224 ratings.
Do HVAC practice test or HVAC Know It All have ads?
Neither HVAC practice test nor HVAC Know It All shows ads.
Which is updated more often, HVAC practice test or HVAC Know It All?
HVAC practice test ships an update every 2 months, and HVAC Know It All every 6 months. Most recently, HVAC practice test was updated on November 2, 2026 and HVAC Know It All on November 3, 2026.

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