Comparison

Bluon HVAC vs EPA 608 Certification Prep

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

Head to head
About

Bluon HVAC

Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.

Highlights
  • 500,000+ HVAC unit database
  • Manuals and part lists
  • AI troubleshooting tool (MasterMechanic)
  • Live support from veteran techs
  • HVAC industry upgrade tools
Features
Read full description

Bluon provides the technical information and support to tackle any job in HVAC-R and plumbing. Scan or search for any unit to find the documentation on over 35,000,000+ HVAC models across virtual every brand. Instantly access the key model specs, age/warranty, manuals, original parts, part specs, and replacement options. See which suppliers carry which part - you can even text/email them or order directly through their website. Get detailed troubleshooting guidance from MasterMechanic, our custom A.l. built with the database and with the problem/solution knowledge of over 135,000 live support calls, or call our Live Tech Support line to connect to our team of 25+ year veteran technicians. Bluon has your back. App Features Include: - Database of 35,000,000+ HVAC units (manuals, specs and part lists) - Master Mechanic: leading A.I. tool for techs - Live Support line: talk to REAL veteran techs to solve problems in the field!

About

EPA 608 Certification Prep

Features
Read full description

Need your EPA 608 certification to handle refrigerants on the job? Overwhelmed by Core, Type I, II, III, and Universal sections? EPA 608 Certification Prep gives you 150 practice questions with clear explanations and 40 CFR citations on most regulatory items — built so you can prepare for your certification exam with confidence. WHAT'S INCLUDED: Practice Mode - 150 multiple-choice questions across 21 subtopics, every answer paired with an explanation and, where applicable, a 40 CFR Part 82 citation. - Drill into Core, Type I, Type II, or Type III separately, or sweep across the whole bank. - Track your accuracy by category to find weak areas before the real test. Mock Exams - Timed mock exams for Core, Type I, Type II, and Type III. - Question grid + flag-for-review during the exam, just like the official testing format. - Diagnostic results with a section-by-section breakdown and pass/fail readout against the EPA cutoffs. Reference Library - Refrigerants: HFC / HCFC / HFO / blends with ASHRAE class, GWP, ODP, and replacement charts. - Regulations: 40 CFR Part 82 Subparts A through F, summarized with section anchors. - Recovery Equipment: high-pressure, low-pressure, and very-low-pressure machine requirements. - Leak Repair: trigger thresholds, repair timelines, verification testing. - Safety: PPE, refrigerant exposure limits, oxygen-deprivation and decomposition products. WHO IS IT FOR: - HVAC apprentices preparing for EPA 608 Certification - Working technicians refreshing for Universal upgrade or re-certification - Vocational students and trade-school attendees - Service managers brushing up on current regulation WHY TECHS LOVE IT: - Fully offline — works in basements, attics, equipment rooms, and job sites with no signal. - No ads, no tracking, no subscription traps. - Real CFR citations on every answer so you can verify the source. - One-time unlock for the full question bank, every mock exam, and the full reference library. - Clean UI designed for one-handed use on a phone in a service van. ONE-TIME UNLOCK: Unlock Full Certification Prep is a single $14.99 USD non-consumable in-app purchase. It unlocks all 150 questions, every mock exam, and the full reference library forever on your Apple ID. No recurring fees. Practice questions are modeled on the EPA 608 certification exam format and built around the public 40 CFR Part 82 regulations. This app is a study aid; certification is awarded by an EPA-approved test administrator. Download EPA 608 Certification Prep and put your study sessions in your pocket.

Screenshots

Bluon HVAC4 screens
EPA 608 Certification Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: Bluon HVAC at none against EPA 608 Certification Prep's 1. Bluon HVAC also leads on iOS requirement (15.1 vs 17.0). EPA 608 Certification Prep's advantage is ads (none vs shown). On price, update cadence 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. EPA 608 Certification Prep sells 1 one-off in-app purchase. Bluon HVAC asks for nothing beyond the download.

UpkeepUpdate frequency

Bluon HVAC ships an update monthly, EPA 608 Certification Prep every 2 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Bluon HVAC versus EPA 608 Certification Prep: the parameters behind the verdict, then further details
ParameterBluon HVACEPA 608 Certification Prep
PriceFreeFree
Rating4.8 (4.5K ratings) — better—
Positive reviews54.6% of reviews—
Number of ratings4.5K — better—
Update frequencyMonthlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size170 MB3 MB
Age rating4+4+
DeveloperBluon, Inc.Shanghai Sheyuan Network Technology Co., Ltd.

Bugs and requests

Bluon HVAC

Reported bugs

2 issues
  • Login/password reset issues
  • Frequent crashes or loading problems

Requested features

3 requests
  • Individual technician subscription option
  • More comprehensive coverage of HVAC equipment models
  • Ability to access full manuals without restrictions

EPA 608 Certification Prep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Bluon HVAC

No in-app purchases

1 purchases

EPA 608 Certification Prep

One-time1
  • Unlock Full Certification Prep$9.99

Questions

Is Bluon HVAC free?
Bluon HVAC is free to download, with no in-app purchases.
Is EPA 608 Certification Prep free?
EPA 608 Certification Prep is free to download, with in-app purchases available.
Do Bluon HVAC or EPA 608 Certification Prep have ads?
Bluon HVAC shows ads; EPA 608 Certification Prep does not.
Which is updated more often, Bluon HVAC or EPA 608 Certification Prep?
Bluon HVAC ships an update monthly, and EPA 608 Certification Prep every 2 weeks. Most recently, Bluon HVAC was updated on October 29, 2026 and EPA 608 Certification Prep on October 31, 2026.

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