Bluon HVAC vs Diamondback Sizing Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 500,000+ HVAC unit database
- Manuals and part lists
- AI troubleshooting tool (MasterMechanic)
- Live support from veteran techs
- HVAC industry upgrade tools
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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!
Diamondback Sizing Calculator
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By using this FREE mobile sizing app, you can quickly and easily size your Diamondback CSST tubing for your next installation. Diamondback installers seeking a more efficient way to work will find this app useful. With the use of an easy-to-use scroll wheel, you will be able to select the length of your run, the number of bends, and the maximum BTU of your Diamondback CSST tubing.
Screenshots
Verdict
The clearest difference is ads: Diamondback Sizing Calculator at none against Bluon HVAC's shown. Diamondback Sizing Calculator also leads on iOS requirement (13.0 vs 15.1). Bluon HVAC's advantage is update cadence (monthly vs every 5 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bluon HVAC ships an update monthly, Diamondback Sizing Calculator every 5 months. The most recent releases landed on September 24, 2026 and May 18, 2026 respectively.
| Parameter | Bluon HVAC | Diamondback Sizing Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4.5K ratings) — better | — |
| Positive reviews | 55.0% of reviews | — |
| Number of ratings | 4.5K — better | — |
| Update frequency | Monthly — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 170 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Bluon, Inc. | CB Supplies 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
Diamondback Sizing Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bluon HVAC
No in-app purchases
Diamondback Sizing Calculator
No in-app purchases
Questions
Is Bluon HVAC free?
Is Diamondback Sizing Calculator free?
Do Bluon HVAC or Diamondback Sizing Calculator have ads?
Which is updated more often, Bluon HVAC or Diamondback Sizing Calculator?
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