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Best Hvac Know It All Apps

237+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated July 2026

HVAC Know It All is the household name in hvac know it all, but it's far from the only option. We track 237+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Hvac Know It All Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1HVAC Know It AllHVAC Know It AllFree4.8★ (221)NoYesJul 2026
2HVAC SchoolHVAC SchoolFree4.8★ (81)NoNoJul 2026
3Bluon HVACBluon HVACFree4.8★ (4.5K)YesNoJul 2026
4SkillCat: EPA 608 & HVACSkillCat: EPA 608 & HVACFree4.9★ (8.2K)NoYesJul 2026
5HVACR Check & ChargeHVACR Check & ChargeFree4.8★ (17K)NoNoJul 2026
6Daikin Tech HubDaikin Tech HubFree4.6★ (3.6K)NoNoJul 2026
7HVAC practice test, prepareHVAC practice test, prepareFree4.3★ (12)NoYesJul 2026
8Carrier® Service TechnicianCarrier® Service TechnicianFree4.2★ (113)NoNoJul 2026

Top Picks for Hvac Know It All

HVAC Know It All#1

HVAC Know It All by HVAC Know It All Inc.

Editor's Choice
📚 Education
4.8😊(221 ratings)
FreeIn-App Purchases
HVAC Know It All screenshot 1
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HVAC Know It All screenshot 3

Connect with HVAC/R professionals to enhance your skills through educational discussions. This app aims to help technicians, installers, owners, educators, and students improve their expertise in the trade.

What We Love

  • 👍 Excellent community for tradespeople
  • 💡 Vast knowledge sharing among professionals
  • 🚀 Game-changer for HVAC technicians
  • 🤝 Supportive and non-judgmental environment

Room to Improve

  • 💰 Forced to pay before accessing content
  • 🤔 Subscription fee not clearly stated upfront
  • 🚫 App makes you pay before you can test it
HVAC School#2

HVAC School by Kalos Services Inc.

By Techs For Techs
Strong Contender
📚 Education
4.8(81 ratings)
Free
HVAC School screenshot 1
HVAC School screenshot 2
HVAC School screenshot 3
HVAC School screenshot 4
HVAC School screenshot 5
HVAC School screenshot 6

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.

Bluon HVAC#3

Bluon HVAC by Bluon, Inc.

HVAC Tools
Worth Considering
🔧 Utilities
4.8😐(4.5K ratings)
FreeAds
Bluon HVAC screenshot 1
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Bluon HVAC screenshot 3
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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

  • 🤖 Helpful tech support
  • 💯 Comprehensive database of manuals and information
  • 🛠️ Useful tools and calculators
  • 🤝 Great customer service

Room to Improve

  • 💰 Paywall for advanced features
  • 🔒 Limited access without company account
  • 🔍 Missing manuals for some equipment models

More Hvac Know It All apps to explore

4
SkillCat: EPA 608 & HVAC
SkillCat: EPA 608 & HVAC
SkillCat: EPA 608 & HVAC
Accredited Online Trade School
Free

This app offers accredited online trade school courses and certifications for HVAC, plumbing, electrical, and more. Learn at your own pace, on your phone, and earn valuable credentials like EPA 608 and OSHA-10 without traditional school debt.

EPA 608 & 609 CertificationAccredited Trade School DiplomasOSHA-10 Certification
📚 Education
(8.2K)
subscription
5
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)
🔍 Reference
(17K)
free
6
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
💼 Business
(3.6K)
free
7
HVAC practice test, prepare
HVAC practice test, prepare
HVAC practice test, prepare
HVAC exam prep, epa 608
Free

Prepare for HVAC certification exams with this comprehensive app. It offers realistic simulations, detailed progress tracking, and error analysis to help you master all exam categories. Enjoy an ad-free learning experience with saved favorites and intensive practice modes.

Complete Q&A for all categoriesRealistic exam mode simulationsSave and review favorite questions
📚 Education
(12)
free with in-app purchases
8
Carrier® Service Technician
Carrier® Service Technician
Carrier® Service Technician
by Carrier Corporation
Free

This app helps HVAC/R technicians quickly identify and locate necessary parts for repairs on any equipment, whether for warranty or non-warranty services. It offers advanced tools for troubleshooting, system calculations, and accessing technical documentation, all from the job site.

AI Assistant for troubleshootingSystem Capacity CalculatorIntelligent Equipment Search
🔧 Utilities
(113)
free
9
Parts Town
Parts Town
Parts Town
Foodservice Parts & Manuals
Free

This app provides foodservice professionals with a mobile platform to find and purchase genuine OEM commercial kitchen parts. Access equipment manuals, utilize smart search tools, and manage your equipment and parts lists for efficient repairs and maintenance.

OEM commercial kitchen partsOnline equipment manualsParts ID tools
🛍️ Shopping
(6K)
free
10
Ref Tools
Ref Tools
Ref Tools
All-in-one HVACR app
Free

This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.

Refrigerant Slider for P/T calculationsSolenoid valve coil testing toolRefrigeration system troubleshooting guide
🔧 Utilities
(47)
free
11
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
📊 Productivity
(5)
free
12
CE HVAC Pro+
CE HVAC Pro+
CE HVAC Pro+
HVAC Tools
Free

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.

Real-time product availability & pricingOrder status and notificationsVideo/Text technical support
📊 Productivity
(1.6K)
free with in-app purchases
13
HVAC Exam Prep 2026
HVAC Exam Prep 2026
HVAC Exam Prep 2026
Pass HVAC Exam & Practice Test
Free

Prepare for your HVAC technician certification exam with a comprehensive mobile study tool. It offers a scientific study system, over 1,700 practice questions with detailed explanations, and simulated exams designed by experts. Track your progress and boost confidence for your first attempt.

1,700+ specialized questionsDetailed explanationsSimulated exam quizzes
📚 Education
(93)
subscription
14
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
🔧 Utilities
(185)
free
15
IN HVAC Calculator
IN HVAC Calculator
IN HVAC Calculator
HVAC Calculator & Reference
Free

This app provides HVAC inspection tools and guidelines for home inspectors. It helps estimate equipment age, size, and requirements, giving inspectors confidence in their reports.

Equipment circuit requirements calculatorAC tonnage estimation by model numberHVAC manufacture date lookup
🔧 Utilities
(11)
free
16
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
📊 Productivity
(812)
free with in-app purchases
17
Ruud
Ruud
Ruud
Connect . Install . Service
Free

This app streamlines HVAC installation, service, and support for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with access to product information, warranty tracking, and dealer locators.

Bluetooth setup and troubleshootingSystem operating parameter monitoringAlarm diagnosis and history
🔧 Utilities
(990)
free
18
Rheem
Rheem
Rheem
Connect . Install . Service
Free

This app streamlines HVAC installation and service for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with comprehensive support for product information, warranty tracking, and locating resources.

Bluetooth setup and troubleshootingSystem monitoring and status checksAlarm diagnosis and history
🔧 Utilities
(1.5K)
free
19
Fieldpiece Job Link
Fieldpiece Job Link
Fieldpiece Job Link
by Fieldpiece Instruments, Inc
Free

This app connects wirelessly with compatible HVACR tools to help professionals troubleshoot, diagnose, and evaluate HVACR systems. It serves as a central hub for managing wireless tools and business solutions, linking your equipment to your jobs.

Wireless tool connectivitySystem troubleshootingDiagnostic capabilities
💼 Business
(490)
free
20
iManifold
iManifold
iManifold
by North Park Innovations Group, Inc.
Free

This app calculates HVAC/R system performance and aids in troubleshooting. It offers a wide selection of refrigerants and equipment profiling for various common systems.

Calculates HVAC/R system performanceTroubleshoots system problemsUser input and live system data
📊 Productivity
(38)
free with in-app purchases

FAQ about Hvac Know It All

What are the best hvac know it all apps for iPhone?
HVAC Know It All tops our hvac know it all apps ranking as of July 2026, with a 4.8-star average from 221 App Store ratings, and it's free to download.
Yes — 20 of the top hvac know it all apps we rank are free to download, including HVAC Know It All and HVAC School.
HVAC Know It All has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 237+ hvac know it all apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
HVAC Know It All is a digital community designed for HVAC/R professionals. It facilitates educational discussions aimed at improving the skills and knowledge of technicians, installers, company owners, educators, and students in the trade.
The app's primary feature is fostering educational discussions among HVAC/R professionals. It serves as a platform for skill enhancement, trade knowledge sharing, and professional networking within the industry.

Related searches

hvac know it all inc.