Best Allday Hvac Calc Apps

236+ iOS apps curated and reviewed

4.5 avg rating
16 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our allday hvac calc list covers 236+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Allday Hvac Calc

Allday HVAC Calc#1

Allday HVAC Calc by Dmitrii Pankov

Pipe and Duct calculations
Editor's Choice
πŸ”§ Utilities
5.0(1 ratings)
FreeIn-App Purchases
Allday HVAC Calc screenshot 1
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Allday HVAC Calc screenshot 5
Allday HVAC Calc screenshot 6

This app offers three specialized modules for HVAC engineers: a psychrometric calculator for air properties, a pipe calculator for fluid dynamics and selection, and a duct calculator for air speed and pressure loss. It provides detailed calculations and reference formulas in both SI and IP units.

Bluon HVAC#2

Bluon HVAC by Bluon, Inc.

HVAC Tools
Strong Contender
πŸ”§ Utilities
4.8😐(4.4K ratings)
FreeAds
Bluon HVAC screenshot 1
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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.

What We Love

  • πŸ€– Helpful tech support
  • πŸ’― Comprehensive database of manuals and information
  • πŸ› οΈ Useful tools and calculators
  • 🀝 Great customer service

Room to Improve

  • πŸ’° Paywall for advanced features
  • πŸ”’ Limited access without company account
  • πŸ” Missing manuals for some equipment models
CE HVAC Pro+#3

CE HVAC Pro+ by Watsco, Inc.

HVAC Tools
Worth Considering
πŸ“Š Productivity
4.7😐(1.5K ratings)
FreeAds
CE HVAC Pro+ screenshot 1
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CE HVAC Pro+ screenshot 5
CE HVAC Pro+ screenshot 6

This app provides HVAC technicians with instant access to product information, including warranty status, inventory, and technical specifications. It offers real-time support, order tracking, and helpful calculators to streamline job management and business growth.

What We Love

  • πŸ‘ Great customer service
  • πŸš€ Time-saving tool
  • πŸ“š Helpful technical information
  • πŸ” Useful inventory and pricing lookup

Room to Improve

  • πŸ› App crashes and bugs
  • ⏱️ Slow performance and loading times
  • πŸ” Incomplete product information

More Allday Hvac Calc apps to explore

4
HVACR Check & Charge
HVACR Check & Charge
HVACR Check & Charge
PT Charts Superheat Subcooling
Free

This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.

Instant refrigerant charge calculatorSuperheat calculator (non-TXV)Subcooling calculator (TXV)
πŸ” Reference
(17K)
free
5
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
by Designstein, llc
Free

This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.

Superheat & Subcooling chargingDuct sizing & layout calculatorCompressor windings troubleshooter
πŸ”§ Utilities
(185)
free
6
measureQuick HVAC
measureQuick HVAC
measureQuick HVAC
Connect. Perform. Prosper.
Free

This application helps HVAC technicians diagnose and repair systems quickly and accurately. It offers robust diagnostic tools to identify problems faster, leading to fewer callbacks and more satisfied customers. It supports various HVAC systems, making it an all-in-one solution for professionals.

Quick HVAC system diagnosisAccurate repair solutionsReduced troubleshooting time
πŸ“Š Productivity
(5)
free
7
Gemaire HVAC Pro+
Gemaire HVAC Pro+
Gemaire HVAC Pro+
HVAC Tools
Free

This app provides HVAC professionals with essential tools and product information to streamline their work. Access pricing, order status, real-time availability, and technical support. It also includes inventory management, warranty services, and helpful calculators.

View pricing and order statusReal-time product availabilitySearch for HVAC models and parts
πŸ“Š Productivity
(798)
free with in-app purchases
8
HVAC School
HVAC School
HVAC School
By Techs For Techs
Free

This app serves as a comprehensive resource for HVAC technicians, offering a podcast, tech tip articles, and interactive calculators. It aims to enhance knowledge of HVAC theory, industry updates, and essential mathematics for both current and aspiring professionals.

HVAC School podcast episodesTech tip articles by professionalsInteractive HVAC equation calculators
πŸ“š Education
(81)
free
9
Pipe Trades Pro Calc
Pipe Trades Pro Calc
Pipe Trades Pro Calc
Calculator | Welding & Piping
Free

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

Advanced measurement calculationsFluid dynamics and pressure analysisComprehensive pipe data access
πŸ”§ Utilities
(3.6K)
free with in-app purchases
10
CoolCloud HVAC 2.0
CoolCloud HVAC 2.0
CoolCloud HVAC 2.0
HVAC Service Streamlined
Free

This application enables HVAC contractors to wirelessly connect with Goodman and Amana air handler and furnace control boards via Bluetooth. It streamlines equipment servicing, maintenance, configuration, and diagnostics for improved energy efficiency and performance.

Bluetooth connectivityEquipment configurationStatus monitoring
πŸ’Ό Business
(17)
free
11
Duct Calculator Elite
Duct Calculator Elite
Duct Calculator Elite
Ducting Size Calculator
$6.99

This app simplifies HVAC duct sizing calculations. It computes duct size, velocity, pressure drop, and flow rate with an intuitive interface. Supports various units and duct materials for precise HVAC design.

Calculate duct size, velocity, pressure drop, flow rateDuct Size by Airflow modeDuct Size by Dimension mode
πŸ”§ Utilities
(220)
paid
12
HVAC PT Chart
HVAC PT Chart
HVAC PT Chart
HVAC Pressure/Temp Charts
Free

This tool provides HVAC technicians with instant access to pressure and temperature data for over 100 refrigerants. It allows users to input one value to find the other, view detailed refrigerant properties, and email comprehensive charts and data.

Pressure/temperature lookup for 100+ refrigerantsInput temperature to find pressure, or vice versaSlider control for precise value selection
πŸ“Š Productivity
(8)
free
13
Daikin Tech Hub
Daikin Tech Hub
Daikin Tech Hub
by Goodman Global Holdings, Inc.
Free

This app provides Daikin service contractors with instant access to all technical and service information for Daikin products. It includes product specifications, manuals, error code troubleshooting, interactive field settings, and service videos. The app works online and offline, syncing data automatically for the latest updates.

Product Technical SpecificationsAll Documents in one placeError Codes with troubleshooting
πŸ’Ό Business
(3.6K)
free
14
Kelley HVAC Pro (5a17df)
Kelley HVAC Pro (5a17df)
Kelley HVAC Pro (5a17df)
HVAC Estimating & Load Calc
Free

This app streamlines HVAC business operations with AI-powered estimates, CRM, and professional tools. It helps contractors generate quotes, manage customers, and track job details efficiently from the field.

AI-powered estimatesLoad calculations (Manual J, D, S)Customer Relationship Management (CRM)
πŸ’Ό Business
(1)
subscription
15
HVAC Load Plus
HVAC Load Plus
HVAC Load Plus
HVAC cooling and heating loads
$24.99

Perform detailed heating and cooling load calculations for buildings in the field using your iPhone. Access a vast weather database and construction data to generate comprehensive reports that can be emailed or exported to spreadsheets.

Detailed heating and cooling load calculations1000+ city weather databaseExtensive construction type data
πŸ“Š Productivity
(5)
paid
16
Baker HVAC Pro+
Baker HVAC Pro+
Baker HVAC Pro+
HVAC Tools
Free

This app provides HVAC/R professionals with on-the-go access to product information and essential tools. It features real-time order tracking, a duct calculator, warranty verification, and branch location details. Users can also search for parts, view technical documents, and receive special offer notifications.

Real-time order statusDuct calculatorProduct availability and pricing
πŸ“Š Productivity
(570)
ad-supported
17
HVAC Toolkit
HVAC Toolkit
HVAC Toolkit
HVAC calcs for all your needs
$23.99

This comprehensive toolkit offers essential HVAC calculations and tools for professionals. It combines multiple specialized applications into a single, convenient package for iPhone and iPad users.

Equipment tracking and customizationRefrigerant pressure-temperature chartsRefrigerant charge calculations
πŸ“Š Productivity
(2)
paid
18
Calculator of Air
Calculator of Air
Calculator of Air
Psychrometric Charts Tool
Free

This tool calculates humidity-related air properties with a calculator-like interface. It supports six key parameters and provides accurate results even under extreme conditions. Ideal for HVAC, cleanrooms, and industrial drying.

Calculate six humidity parametersAccurate results under extreme conditionsSupports Celsius and Fahrenheit
πŸ“Š Productivity
(14)
ad-supported
19
Feet and Inches Calculator
Feet and Inches Calculator
Feet and Inches Calculator
Perfect Construction Calc!
Free

A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.

Construction math and estimatingLayout, framing, and jobsite calculationsImperial and metric unit conversion
πŸ”§ Utilities
(384)
free with in-app purchases
20
HVAC Toolkit Ultimate
HVAC Toolkit Ultimate
HVAC Toolkit Ultimate
Endless HVAC Functionality
$59.99

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.

Residential load calculationsEquipment nameplate data trackingRefrigerant pressure-temperature charts
πŸ“Š Productivity
(4)
paid