Comparison

HVAC School vs EPA 608 Practice

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

Head to head
About

HVAC School

This app serves as a comprehensive resource for HVAC technicians, offering a podcast, tech tip articles, and interactive calculators. It aims to enhance knowledge of HVAC theory, industry updates, and essential mathematics for both current and aspiring professionals.

Highlights
  • HVAC School podcast episodes
  • Tech tip articles by professionals
  • Interactive HVAC equation calculators
  • Industry knowledge and theory
  • Up-to-date industry information
Features
Read full description

The app that helps you remember some things you forgot along the way, as well as helps you remember some things you forgot to know in the first place. For all current and aspiring HVAC technicians: HVAC School is the premiere source for knowledge and success in the HVAC industry. With this app you can: * Listen to all episodes of the HVAC School podcast, a podcast committed to bringing you relevant and up to date knowledge of the HVAC industry and what it means to be an HVAC technician. * Read tech tip articles written by industry professionals on various topics to help build your knowledge base and understanding of HVAC theory * Interact with calculators that employ common HVAC equations to help build your understanding of important HVAC mathematics

About

EPA 608 Practice

Prepare for your EPA Section 608 technician certification with over 500 practice questions. Each answer includes the specific regulation or test topic it's based on, ensuring you understand the 'why' behind the correct response. The app offers realistic exam scoring and shuffles answer options to promote true learning.

Highlights
  • 520 practice questions
  • Source citation for every answer
  • Realistic 70% pass bar
  • Shuffled answer options
  • Full Spanish language support
  • Offline functionality
  • Topic-specific accuracy tracking
Features
Read full description

Pass your EPA Section 608 technician certification. 520 practice questions across all four exam sections — Core, Type I, Type II and Type III — written from EPA's published test topics and 40 CFR Part 82. WHAT MAKES THIS DIFFERENT Every answer cites its source. Get a question wrong and you don't just see the correct answer, you see the regulation behind it — 40 CFR § 82.152, § 82.156, § 82.157, or EPA's own published test topic outline. You learn where the rule lives, not just what it says. Current rules, not outdated ones. Leak-rate thresholds changed in 2016 to 30% industrial process / 20% commercial / 10% comfort cooling. R-22 production and import ended January 1, 2020. R-134a is a medium-pressure refrigerant, not high-pressure. A lot of study material still teaches the old answers. This doesn't. Real exam scoring. Each graded section exam is 25 questions and you need 18 of them — 70% — to pass, exactly like the real test. Questions are drawn proportionally across the section's topic areas. No inflated scores. Answers move. Option order is shuffled on every attempt, so you learn the material instead of memorizing that the answer is usually B. Full Spanish. Every question, every answer, every explanation and every screen, in Spanish. Switch languages any time. FEATURES • 520 questions across 26 EPA topic areas • Practice by topic — untimed, with the explanation shown as you go • Graded 25-question section exams with a real 70% pass bar • Review screen that shows what you missed first • Flashcards for every section • Bookmark the ones that catch you out • Per-topic accuracy tracking and a "study next" list of your weakest areas • Daily practice streak • Fully offline — no signal needed on the jobsite THE CERTIFICATION PATH Core is mandatory for every certification type, so the graded type exams stay locked until you pass it — the same way the real certification works. Pass Core plus your type to earn Type I, Type II or Type III. Pass all four sections for Universal. Type I covers small appliances of 5 lbs or less. Type II covers medium-, high- and very high-pressure appliances. Type III covers low-pressure appliances. PRIVACY No account. No sign-up. No ads. No tracking. No analytics. Your progress is stored on your device and nothing is ever sent anywhere. --- Not affiliated with, endorsed by, or sponsored by the U.S. Environmental Protection Agency or any certifying organization. This app is a study aid. Actual certification testing must be completed through an EPA-approved certifying program.

Screenshots

HVAC School4 screens
EPA 608 Practice4 screens

Verdict

The call

The clearest difference is price: HVAC School at Free against EPA 608 Practice's $8.99. HVAC School also leads on ratings volume (85 vs 2) and iOS requirement (13.4 vs 16.0). EPA 608 Practice's advantage is review sentiment (100% vs 83%) and rating (5.0 vs 4.8). On update cadence, 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 School is free to download; EPA 608 Practice costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

EPA 608 Practice holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: HVAC School has 85 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 83% of HVAC School's written reviews are positive against 100% of EPA 608 Practice's.

UpkeepUpdate frequency

HVAC School ships an update every 5 weeks, EPA 608 Practice every 3 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 4 level
HVAC School versus EPA 608 Practice: the parameters behind the verdict, then further details
ParameterHVAC SchoolEPA 608 Practice
PriceFree — better$8.99
Rating4.8 (85 ratings)5.0 (2 ratings) — better
Positive reviews82.8% of reviews100.0% of reviews — better
Number of ratings85 — better2
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better16.0
Further details — not scored
Size30 MB2 MB
Age rating12+4+
DeveloperKalos Services Inc.Mangalmurti Vibes, LLC

Customer experience

HVAC School

All ratings85 ratings
Positive95.3%
Neutral3.5%
Negative1.2%
Written reviews29 reviews
Positive82.8%
Neutral13.8%
Negative3.4%

EPA 608 Practice

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HVAC School

No in-app purchases

None

EPA 608 Practice

No in-app purchases

Questions

Is HVAC School free?
HVAC School is free to download, with no in-app purchases.
Is EPA 608 Practice free?
EPA 608 Practice costs $8.99, with no in-app purchases.
Which has better reviews, HVAC School or EPA 608 Practice?
EPA 608 Practice is rated higher. HVAC School averages 4.8 out of 5 from 85 ratings, while EPA 608 Practice averages 5.0 from 2 ratings.
Do HVAC School or EPA 608 Practice have ads?
Neither HVAC School nor EPA 608 Practice shows ads.
Which is updated more often, HVAC School or EPA 608 Practice?
HVAC School ships an update every 5 weeks, and EPA 608 Practice every 3 weeks. Most recently, HVAC School was updated on October 21, 2026 and EPA 608 Practice on October 25, 2026.

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