Comparison

Airzone Pro Cloud vs Unit Converter HVAC

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

Head to head
About

Airzone Pro Cloud

Features
Read full description

Airzone Pro Cloud is the professional tool for air conditioning and heating installers, helping you work more independently, efficiently and productively every day. Everything you need for your installations, all in one platform: β€’ Manage your installations and set up Airzone devices directly from your smartphone or tablet. β€’ Access technical documentation and self-diagnostic tools, and get the technical support you need for every installation, always at hand. If you have any questions about the app, contact us.

About

Unit Converter HVAC

Features
Read full description

HVAC Unit Converter Pro helps HVAC technicians, engineers, refrigeration mechanics, and contractors convert between units instantly. Convert between all common air conditioning and refrigeration units instantly across 8 categories and 40+ unit types - eliminating calculation errors on job sites. 8 CONVERSION CATEGORIES: Temperature - Β°F, Β°C, K, Β°R (Rankine) for climate zones and equipment specs Pressure - PSI, kPa, bar, in. Hg, mm Hg, atm, Pa, in. w.c. (static pressure), microns (vacuum) for gauges and evacuation Energy & Heat - BTU, kJ, kcal, Wh, therm for load calculations Airflow (CFM) - CFM, L/s, mΒ³/h, mΒ³/s, mΒ³/min for ductwork and ventilation Length & Duct - in, ft, mm, cm, m for duct sizing and pipe runs Area Calculations - ftΒ², mΒ², inΒ² for room dimensions and surface area Volume & Capacity - gal, L, ftΒ³, mΒ³ for tank and system volumes Power & Output - BTU/h, W, kW, ton (refrigeration), hp, kcal/h for equipment ratings SMART FEATURES: Instant Conversion - Results update as you type, no button press needed Bidirectional Conversion - One tap to reverse conversion direction instantly Swap Units - Toggle between any unit pair in the same category Works 100% Offline - Field calculations without internet connection Accuracy Verified - Professional-grade precision for system design English & Spanish Support - Bilingual interface for diverse teams WHY HVAC PROFESSIONALS USE THIS APP: Eliminates manual conversion errors that cause mistakes Faster unit calculations than reference tables and charts Cross-checks between imperial and metric systems instantly Prevents equipment sizing errors from unit mistakes Works on every job site without cellular connection Dark theme prevents eye strain during outdoor work CONVERSION EXAMPLES HVAC TECHS USE DAILY: PSI to kPa for pressure readings on gauge conversions BTU to kW for international equipment specifications CFM to mΒ³/s for ductwork design in metric regions Β°F to Β°C for climate zone design temperature conversions Tons to kW for heat pump capacity documentation BTU/h to watts for electrical load calculations PERFECT FOR: HVAC technicians on air conditioning service calls HVAC field technicians calculating refrigeration requirements Refrigeration mechanics sizing refrigerant lines AC contractors preparing equipment specifications HVAC design engineers in international projects HVAC apprentices learning unit conversions Building maintenance engineers managing equipment Commercial HVAC system commissioning work A tool trusted by HVAC technician teams nationwide. Part of HVACTools Suite - the complete HVAC technician and refrigeration calculator app collection for field diagnostics and system design. OPTIONAL PRO UPGRADE β€” $2.99 ONE-TIME IN-APP PURCHASE The following features require a separate one-time in-app purchase. They are not required to use the calculator: β€’ Unlimited saved calculation history β€’ PDF export of results β€’ Dark theme β€’ Ad-free experience

Screenshots

Airzone Pro Cloud4 screens
Unit Converter HVAC4 screens

Verdict

The call

The clearest difference is price: Airzone Pro Cloud at Free against Unit Converter HVAC's $0.99. Airzone Pro Cloud also leads on in-app purchases (none vs 1). Unit Converter HVAC's advantage is iOS requirement (13.0 vs 15.5). On update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Airzone Pro Cloud is free to download; Unit Converter HVAC costs $0.99 up front. Unit Converter HVAC sells 1 one-off in-app purchase. Airzone Pro Cloud asks for nothing beyond the download.

UpkeepUpdate frequency

Airzone Pro Cloud ships an update every 2 weeks, Unit Converter HVAC every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard3 real differences Β· 3 level
Airzone Pro Cloud versus Unit Converter HVAC: the parameters behind the verdict, then further details
ParameterAirzone Pro CloudUnit Converter HVAC
PriceFree β€” better$0.99
Update frequencyEvery 2 weeks β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.513.0 β€” better
Further details β€” not scored
Size48 MB34 MB
Age rating4+17+
DeveloperCorporacion Empresarial Altra SLRizvan Adzhoian

In-app purchases

None

Airzone Pro Cloud

No in-app purchases

1 purchases

Unit Converter HVAC

One-time1
  • Pro Unlock$2.99

Questions

Is Airzone Pro Cloud free?
Airzone Pro Cloud is free to download, with no in-app purchases.
Is Unit Converter HVAC free?
Unit Converter HVAC costs $0.99, and also offers in-app purchases.
Do Airzone Pro Cloud or Unit Converter HVAC have ads?
Neither Airzone Pro Cloud nor Unit Converter HVAC shows ads.
Which is updated more often, Airzone Pro Cloud or Unit Converter HVAC?
Airzone Pro Cloud ships an update every 2 weeks, and Unit Converter HVAC every 3 weeks. Most recently, Airzone Pro Cloud was updated on October 27, 2026 and Unit Converter HVAC on October 28, 2026.

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