Comparison

HVAC Formulator vs HVAC Super Tech

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

Head to head
About

HVAC Formulator

This app provides HVAC professionals with over 900 essential formulas and calculations for load calculations and system design. It supports both US and Metric units, offers instant switching, and includes 23 calculator categories and over 460 unit conversions. Designed for field use, it works offline and allows users to save and share results.

Highlights
  • Over 900 formulas and calculations
  • US & Metric unit support
  • 23 calculator categories
  • 460+ unit conversions
  • 8 temperature scales
  • Offline functionality
  • Save and share results
Features
Read full description

HVAC FORMULATOR is the essential tool for Heating, Ventilating, and Air Conditioning professionals. With over 900 formulas and calculations, it covers everything from basic load calculations to advanced system design — all in your pocket. US & METRIC SUPPORT — Switch instantly between US (Imperial) and Metric (SI) units. Results display in both systems so you always have the value you need. Input labels and conversions update automatically. 23 CALCULATOR CATEGORIES including: - Cooling Load — Sensible, latent, and total cooling calculations, tons, EER, COP, and sensible heat ratio - Fan Laws — Speed and diameter affinity laws for CFM, pressure, and horsepower - Duct Sizing — Velocity, round and rectangular sizing, equivalent diameter, aspect ratio - Ventilation Rate — ASHRAE 62.1 breathing zone, air changes per hour, exhaust fan sizing - Electrical — Ohm's Law, single and three-phase power, motor FLA, watts to BTU/h - Gas Laws — Boyle's, Charles's, Gay-Lussac's, Combined, and Ideal Gas Law - Psychrometrics — Bypass factor, mixed air temperature, percent outside air, dew point - Hydronic Formulas — Heat transfer, flow rate, pipe velocity, expansion tank, Cv coefficient - Boiler — Efficiency calculations, BTU output, heat absorption - Refrigeration — Tonnage output, compression ratio, mass flow rate, COP - Ductwork — Velocity, velocity pressure, total pressure, equivalent round - Airside — Sensible heat, latent heat, total heat (US and Metric) - Piping — Pipe area, weight, friction loss, expansion, Hazen-Williams, 70+ formulas - Steam — Condensate loads, fuel calculations, steam flow - Pump Laws — Break horsepower, suction head, pump affinity laws - Energy — Fuel values for oil, gas, coal, propane, ethanol, and more - Heating Design — Electric heating, baseboard, radiant ceiling, boiler capacity, hydronic snow melting - Heating Requirement — Insulation-based load calculations - Humidity — Specific humidity, relative humidity, sensible and latent heat - Loads — Temperature loads, heat gains from lights, equipment, and machines - Temperature — Mixed air, liquid mixing, final temperature calculations - Waterside System — Total heat, evaporator and condenser flow rates - Air Change Rate — Air changes per hour, air flow rate 460+ UNIT CONVERSIONS across 16 categories: Metric, Pressures, BTU, Linear, Square, Cubic, Liquid Measures, Weights, Flows, Power, Horsepower, Watts, Hydraulic, Ft-Lbs, Sand/Volume, and HVAC-specific conversions. 8 TEMPERATURE SCALES — Convert between Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Newton, Delisle, and Romer. BUILT FOR PROFESSIONALS: - Search across all 900+ formulas instantly - Mark favorites for quick access - Save calculation history with full breakdown - Share and export results - Clean, fast interface designed for field use - Works offline — no internet required HVAC FORMULATOR is a professional-grade tool built for HVAC technicians, engineers, contractors, and students. New formulas and features are added regularly.

About

HVAC Super Tech

This app provides certified-level HVAC technical support, offering fast troubleshooting for error codes and system faults. It features smart image analysis for diagrams and hands-free voice assistance for technicians.

Highlights
  • Fast error code diagnosis
  • System fault analysis
  • Image analysis of diagrams
  • Hands-free voice commands
  • 24/7 technical support
  • All manufacturer brands supported
Features
Read full description

HVAC Super Tech is the only mobile app that brings accurate certified-level HVAC expertise straight to your phone! Fast and Accurate Troubleshooting •Lightning-fast diagnosis of error codes, pressure/temperature readings, analysis, and system faults •Get clear, step-by-step instructions without flipping through manuals, or getting lost in web searches with unreliable information Smart Image & Diagram Analysis •Snap photos of wiring diagrams, circuit boards or equipment panels. Our OCR feature reads, annotates and guides you in real time. •Identify components and problem areas with precision. Hands-Free Voice Assistance •Use voice commands to ask questions while you work, no need to touch your phone with greasy gloves. Why HVAC Super Tech? •Built by industry-certified and seasoned HVAC professionals with decades of knowledge, experience, and resources in the building trades industry, HVAC Super Tech is the most valuable technical support app available! •Cost less than a day's lunch per week! Tired of waiting on a phone call, trying to find the manual online, or reaching out to multiple sources because of manufacturer/brand specific information? •HVAC Super Tech provides fast 24.7 technical support for all manufacturer brands of equipment and all building systems •No more being in the dark in those middle of the night service calls With HVAC Super Tech you’ll: •Reduce call-back rates and equipment downtime •Increase first-visit fix rates and billable hours •Empower less experienced techs with expert-level guidance, increasing knowledge and value along the way •Reduced time spent on service calls •Reduces having to add more technicians in high demand seasons, by making technicians more efficient •Build you and your companies reputation and have stronger relationships with clients Download now and transform every service call into a smooth, efficient and profitable experience. Your ultimate, single source 24.7 HVAC technical support is here and the value never ends! *Subscription required for app access. •Apple’s standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ •Privacy Policy: https://buildingsolutionstechnicalservices.com/#hvac-super-tech-app-privacy-policy

Screenshots

HVAC Formulator4 screens
HVAC Super Tech4 screens

Verdict

The call

The clearest difference is review sentiment: HVAC Super Tech at 100% against HVAC Formulator's 9%. HVAC Super Tech also leads on price (Free vs $4.99) and rating (5.0 vs 2.0). On 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 Super Tech is free to download; HVAC Formulator costs $4.99 up front. HVAC Formulator sells 1 one-off in-app purchase and HVAC Super Tech sells 3 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

HVAC Super Tech holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: HVAC Super Tech has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 9% of HVAC Formulator's written reviews are positive against 100% of HVAC Super Tech's.

UpkeepUpdate frequency

HVAC Formulator ships an update every 2 months, HVAC Super Tech fortnightly. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

Scorecard7 real differences · 3 level
HVAC Formulator versus HVAC Super Tech: the parameters behind the verdict, then further details
ParameterHVAC FormulatorHVAC Super Tech
Price$4.99Free — better
Rating2.0 (1 ratings)5.0 (5 ratings) — better
Positive reviews9.1% of reviews100.0% of reviews — better
Number of ratings15 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.616.6 — better
Further details — not scored
Size73 MB21 MB
Age rating4+17+
DeveloperHistorycentral.comBUILDING SOLUTIONS TECHNICAL SERVICES LLC

Customer experience

HVAC Formulator

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews11 reviews
Positive9.1%
Neutral18.2%
Negative72.7%

HVAC Super Tech

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

HVAC Formulator

One-time1
  • HVAC Pro$3.99
3 purchases

HVAC Super Tech

Subscriptions2
  • Pro Level-Monthly Subscription7 Days trial$29.991 Month
  • Pro Level-Yearly Subscription$199.991 Year
One-time1
  • Part Timer-30 Day Access$49.99

Questions

Is HVAC Formulator free?
HVAC Formulator costs $4.99, and also offers in-app purchases.
Is HVAC Super Tech free?
HVAC Super Tech is free to download, with in-app purchases available.
Which has better reviews, HVAC Formulator or HVAC Super Tech?
HVAC Super Tech is rated higher. HVAC Formulator averages 2.0 out of 5 from 1 ratings, while HVAC Super Tech averages 5.0 from 5 ratings.
Do HVAC Formulator or HVAC Super Tech have ads?
Neither HVAC Formulator nor HVAC Super Tech shows ads.
Which is updated more often, HVAC Formulator or HVAC Super Tech?
HVAC Formulator ships an update every 2 months, and HVAC Super Tech fortnightly. Most recently, HVAC Formulator was updated on October 18, 2026 and HVAC Super Tech on October 21, 2026.

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