Comparison

HVAC Toolkit Ultimate vs TEC Excelsior HVAC Pro+

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

Head to head
About

HVAC Toolkit Ultimate

This comprehensive application offers a suite of tools for HVAC professionals, including load calculations, equipment tracking, refrigerant charts, duct and pipe sizing, and psychrometric analysis. It consolidates multiple functionalities into a single, powerful utility for field and office use.

Highlights
  • Residential load calculations
  • Equipment nameplate data tracking
  • Refrigerant pressure-temperature charts
  • Superheat and subcool calculations
  • Duct and pipe sizing analysis
  • Psychrometric calculations
  • Steam table property calculations
Features
Read full description

This may just be the only HVAC app you will ever need. The HVAC Toolkit Ultimate from Carmel Software is a universal app that works on both the iPhone and iPad. It is the essential app for anyone in the HVAC industry. It is a compilation of most of the individual iPhone and iPad applications offered by Carmel Software plus bonus software. If you bought each of these apps separately, it would cost more than 2 times what the price of this app is. It includes: 1. HVAC Residential Load Calc HD (iPad version) 1. HVAC Residential Load Calcs (iPhone version) 1. HVAC Equipment Locator 2. HVAC PT Chart 3. HVAC Refrigerant Charge 4. HVAC Duct Sizer 2. HVAC Quick Load 6. ASHRAE Ventilation Calcs (iPhone version) 7. Psychrometrics 8. Steam Tables 9. HVAC Pipe Sizer - Liquid 10. HVAC Pipe Sizer - Steam 11. HVAC Pipe Sizer - Gas Low 12. HVAC Pipe Sizer - Gas High The "HVAC Residential Load Calcs" module allows you to perform comprehensive HVAC block and room-by-room load calculations for small commercial and residential buildings. You can easily use this module out in the field by taking advantage of the simplicity and power of the iPhone or iPad, and then email results back to your office. The "HVAC Equipment Locator" module allows you to track, share, and customize your equipment nameplate and maintenance data. The version here includes the ability to customize your input screens (this is usually an in-app purchase on the free stand-alone version of Locator, but it is included here). The "HVAC PT Chart" module allows you to easily view the pressure-temperature properties of 100 refrigerants. Think of this app as a digital version of the paper PT charts that you may have carried around with you in the past. The "HVAC Refrigerant Charge" module allows you to perform superheat and subcool refrigerant charge calculations on-the-fly. This app includes pressure-temperature data for over 100 common refrigerants including azeotropic (bubble/dew) versions of refrigerants. The "HVAC Duct Sizer" module allows you to perform quick and simple duct sizing analysis. You can specify the total airflow in CFM (or L/s), the aspect ratio and one of either the velocity of air or the friction loss per 100 feet (30 meters). The results include both the exact and rounded height and width (or diameter) dimensions and the calculated velocity and friction loss. In addition, you can calculate for a range of duct sizes by specifying minimum and maximum friction loss and airflow values. The "HVAC Quick Load" module allows you to quickly calculate total heating and cooling loads for a wide variety of building types. The "Psychrometrics" module allows you to easily perform single-state and mixed-air HVAC psychrometric calculations for up to 23 different combinations of input parameters. The "Steam Tables" module allows you to calculate the properties of saturated or superheated steam by specifying 2 input properties. This module is also part of the "Pipe Sizer - Steam" module discussed below. The "ASHRAE Ventilation Calcs" module allows you to perform comprehensive minimum ventilation calculations for a wide variety of commercial buildings based upon ASHRAE Standard 62.11-2007 and 2010/2013 versions. The "HVAC Pipe Sizer - Liquid" module allows you to size a pipe run for many different types of liquids (or fluids), pipe material and fitting types. The "HVAC Pipe Sizer - Steam" module allows you to size a steam pipe run, and it also includes a bonus steam table calculator. The "HVAC Pipe Sizer - Gas Low and Gas High" modules allows you to quickly size a simple low (less than or equal to 1.5 psi) and high (greater than 1.5 psi) pressure gas piping system by inputting a number of piping and gas properties. All values can be displayed in English (IP) and Metric (SI) units. We also offer all of the above modules as individual apps, too.

About

TEC Excelsior HVAC Pro+

This app provides HVAC professionals with quick access to product information, pricing, availability, and technical resources. It includes tools for searching equipment, verifying warranties, and calculating system needs, streamlining on-site work.

Highlights
  • View pricing and order status
  • Check real-time product availability
  • Find branch locations and hours
  • Search HVAC models and parts
  • Verify warranty registrations and submit claims
  • Access spec sheets and diagrams
  • Use HVAC calculators
Features
Read full description

Temperature Equipment Co and National Excelsior’s mobile app is your HVAC “Easy Button”. It can make your life easier and save time by providing access to product information and useful tools whether you’re on-site, in the drive-thru, or just sitting at home watching TV. Features & Benefits You can: * link to your Temperature Equipment Co and National Excelsior account to view your pricing and order status data, as well as real-time product availability at your preferred branch and other nearby Temperature Equipment Corporation branches * easily find Temperature Equipment Co and National Excelsior locations, hours, & phone numbers. Get driving directions through your favorite mapping app * search for HVAC equipment models and view the parts list and superseded parts. Scan QR codes or UPC Bar Codes for faster product lookups * also search by system needs to find AHRI matched systems * verify warranty registrations, get related data, and even submit warranty claims while in the field * view spec sheets, wiring diagrams, installation guides, consumer literature, etc. for Temperature Equipment Corporation products * receive push notifications of special offers & promotions from Temperature Equipment Co and National Excelsior * access multiple useful calculators, including the PT calculator, Sub-Cool calculator, Superheat calculator, Existing Duct calculator, and New Duct calculator * quickly access the flashlight tool to light up attics, closets and equipment while you work Temperature Equipment Co and National Excelsior’s mission is to deliver the quality HVAC products you need, when you need them, and provide expert technical support. Temperature Equipment Co and National Excelsior are the HVAC professionals’ supplier of choice, and we work hard every day to earn and keep your trust

Screenshots

HVAC Toolkit Ultimate4 screens
TEC Excelsior HVAC Pro+4 screens

Verdict

The call

The clearest difference is price: TEC Excelsior HVAC Pro+ at Free against HVAC Toolkit Ultimate's $59.99. TEC Excelsior HVAC Pro+ also leads on rating (4.4 vs 3.0) and update cadence (every 2 months vs every 6 months). HVAC Toolkit Ultimate's advantage is iOS requirement (13.0 vs 16.0). 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

TEC Excelsior HVAC Pro+ is free to download; HVAC Toolkit Ultimate costs $59.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TEC Excelsior HVAC Pro+ holds the better App Store score, 4.4 against 3.0. Both are backed by a comparable volume of ratings — 4 and 12 respectively.

UpkeepUpdate frequency

HVAC Toolkit Ultimate ships an update every 6 months, TEC Excelsior HVAC Pro+ every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
HVAC Toolkit Ultimate versus TEC Excelsior HVAC Pro+: the parameters behind the verdict, then further details
ParameterHVAC Toolkit UltimateTEC Excelsior HVAC Pro+
Price$59.99Free — better
Rating3.0 (4 ratings)4.4 (12 ratings) — better
Positive reviews40.0% of reviews—
Number of ratings412 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size59 MB165 MB
Age rating4+4+
DeveloperCarmel Software CorporationWatsco, Inc.

Customer experience

HVAC Toolkit Ultimate

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews15 reviews
Positive40.0%
Neutral6.7%
Negative53.3%

TEC Excelsior HVAC Pro+

All ratings12 ratings
Positive83.3%
Neutral8.3%
Negative8.3%

In-app purchases

None

HVAC Toolkit Ultimate

No in-app purchases

None

TEC Excelsior HVAC Pro+

No in-app purchases

Questions

Is HVAC Toolkit Ultimate free?
HVAC Toolkit Ultimate costs $59.99, with no in-app purchases.
Is TEC Excelsior HVAC Pro+ free?
TEC Excelsior HVAC Pro+ is free to download, with no in-app purchases.
Which has better reviews, HVAC Toolkit Ultimate or TEC Excelsior HVAC Pro+?
TEC Excelsior HVAC Pro+ is rated higher. HVAC Toolkit Ultimate averages 3.0 out of 5 from 4 ratings, while TEC Excelsior HVAC Pro+ averages 4.4 from 12 ratings.
Do HVAC Toolkit Ultimate or TEC Excelsior HVAC Pro+ have ads?
Neither HVAC Toolkit Ultimate nor TEC Excelsior HVAC Pro+ shows ads.
Which is updated more often, HVAC Toolkit Ultimate or TEC Excelsior HVAC Pro+?
HVAC Toolkit Ultimate ships an update every 6 months, and TEC Excelsior HVAC Pro+ every 2 months. Most recently, HVAC Toolkit Ultimate was updated on November 1, 2026 and TEC Excelsior HVAC Pro+ on November 6, 2026.

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