Comparison

Bluon HVAC vs Zerk

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

Zerk

Diagnose and fix home appliance issues with AI. Scan your appliance's model label, describe the problem, and receive instant repair guidance and compatible parts. Avoid unnecessary service calls and save money.

Highlights
  • AI-powered diagnosis
  • Model identification via camera
  • Step-by-step repair guidance
  • Compatible parts marketplace
  • Repair ticket submission
  • Live chat support
  • Order management
Features
Read full description

Zerk helps you understand and fix home appliance problems without guesswork. Point your camera at the model label, describe what's wrong, and get an AI-powered diagnosis with practical repair suggestions in minutes. WHAT YOU CAN DO Scan & Identify Take a photo of your appliance's nameplate or model sticker. Zerk reads the label and identifies the model instantly, so you always know exactly what you're working with. AI Diagnosis Snap a photo, add a short description of the symptoms, and let Zerk analyze the likely cause of the fault. You get clear, step-by-step repair guidance to help decide whether to fix it yourself or seek service - and to avoid unnecessary spending. Parts Marketplace Once your appliance is identified, Zerk surfaces compatible parts. Order what you need and check out quickly with a credit card or Apple Pay. Payments are securely processed by Stripe. Repair Tickets & Live Chat Not sure how to proceed? Submit a repair ticket or chat with support directly inside the app for extra help. Order Management Track your orders, request a refund, and view the return address - all in one place. WHY ZERK - Save time: identify models by photo instead of digging through manuals - Save money: understand the problem before paying for a service call - Genuine parts: order components matched to your identified model - Fast checkout: Apple Pay and card, powered by Stripe - Available in English, Simplified Chinese, and Spanish PRIVACY & SIGN IN Sign in with Apple is supported. We collect only what's needed to run your account, process orders, and provide diagnostics. Camera, photos, microphone, speech recognition, and location are used only when you choose a feature that needs them (for example, one-time location to auto-fill a shipping address). Download Zerk and take the guesswork out of appliance repair. Privacy Policy: https://humanoiddepot.ai/privacy.html Support: https://humanoiddepot.ai/support.html

Screenshots

Bluon HVAC4 screens
Zerk4 screens

Verdict

The call

The clearest difference is ads: Zerk at none against Bluon HVAC's shown. Zerk also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Bluon HVAC's advantage is ratings volume (4.5K vs 1). On price, update cadence, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Zerk holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Bluon HVAC has 4.5K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Bluon HVAC versus Zerk: the parameters behind the verdict, then further details
ParameterBluon HVACZerk
PriceFreeFree
Rating4.8 (4.5K ratings)5.0 (1 ratings) — better
Positive reviews54.6% of reviews—
Number of ratings4.5K — better1
Update frequencyMonthlyMonthly
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size170 MB16 MB
Age rating4+4+
DeveloperBluon, Inc.晨阳 栗

Customer experience

Bluon HVAC

All ratings4,451 ratings
Positive94.4%
Neutral1.6%
Negative4.0%
Written reviews141 reviews
Positive54.6%
Neutral6.4%
Negative39.0%

Zerk

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Zerk

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Bluon HVAC

No in-app purchases

None

Zerk

No in-app purchases

Questions

Is Bluon HVAC free?
Bluon HVAC is free to download, with no in-app purchases.
Is Zerk free?
Zerk is free to download, with no in-app purchases.
Which has better reviews, Bluon HVAC or Zerk?
Zerk is rated higher. Bluon HVAC averages 4.8 out of 5 from 4.5K ratings, while Zerk averages 5.0 from 1 ratings.
Do Bluon HVAC or Zerk have ads?
Bluon HVAC shows ads; Zerk does not.
Which is updated more often, Bluon HVAC or Zerk?
Bluon HVAC ships an update monthly, and Zerk monthly. Most recently, Bluon HVAC was updated on October 24, 2026 and Zerk on October 16, 2026.

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