Best Manual J Apps & Games

61+ iOS apps & games curated and reviewed

3.7 avg rating
15 free apps & games
Updated June 2026

Looking for free manual j apps and games? 15 of our 61+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Manual J Apps & Games (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1HVAC Load Calculator Manual JHVAC Load Calculator Manual JFree was $1.994.7★ (29)NoYesJul 2026
2HVAC Calculator Load ProHVAC Calculator Load ProFree was $12.994.0★ (1)NoYesJun 2026
3LaserCalc MobileLaserCalc MobileFree3.4★ (5)YesYesMay 2026
4Blue Cold Heat Load CalculatorBlue Cold Heat Load CalculatorFree5.0★ (1)NoNoMay 2026
5HVAC Calculator Load LiteHVAC Calculator Load LiteFreeNoYesMay 2026
6HVAC Residential Load CalcsHVAC Residential Load Calcs$34.993.0★ (3)NoYesJun 2026
7HVAC Load PlusHVAC Load Plus$24.992.8★ (5)NoYesJul 2026
8ManualMaker / Manual creationManualMaker / Manual creationFree3.5★ (2)YesYesJul 2026

Top Picks for Manual J

HVAC Load Calculator Manual J#1

HVAC Load Calculator Manual J by Mike Watson

BTU Sizing for Contractors
Editor's Choice
🔧 Utilities
4.7(29 ratings)
FreeIn-App Purchases
HVAC Load Calculator Manual J screenshot 1
HVAC Load Calculator Manual J screenshot 2
HVAC Load Calculator Manual J screenshot 3
HVAC Load Calculator Manual J screenshot 4
HVAC Load Calculator Manual J screenshot 5

This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.

HVAC Calculator Load Pro#2

HVAC Calculator Load Pro by Ryan Perchak

Built for HVAC Specialists
Strong Contender
📊 Productivity
4.0(1 ratings)
FreeIn-App Purchases
HVAC Calculator Load Pro screenshot 1
HVAC Calculator Load Pro screenshot 2
HVAC Calculator Load Pro screenshot 3
HVAC Calculator Load Pro screenshot 4
HVAC Calculator Load Pro screenshot 5
HVAC Calculator Load Pro screenshot 6

This tool provides fast, accurate HVAC load calculations for residential systems. It helps professionals size furnaces, air conditioners, and gas equipment correctly, avoiding guesswork and spreadsheets for confident client recommendations and more closed bids.

LaserCalc Mobile#3

LaserCalc Mobile by Imogen Technologies LLC

Worth Considering
💼 Business
3.4(5 ratings)
FreeAdsIn-App Purchases
LaserCalc Mobile screenshot 1
LaserCalc Mobile screenshot 2
LaserCalc Mobile screenshot 3
LaserCalc Mobile screenshot 4

This app assists HVAC professionals with accurate load calculations for residential and commercial projects. It adheres to industry-standard ACCA Manual J 8th Edition guidelines, integrating data from DOE and NREL for precise results.

More Manual J apps to explore

4
Blue Cold Heat Load Calculator
Blue Cold Heat Load Calculator
Blue Cold Heat Load Calculator
by Blue Cold Refrigeration Private Limited
Free

Accurately calculate the cooling capacity needed for cold rooms, storage, and freezers. Input room details, insulation, temperatures, and product information for precise, data-driven recommendations. Generate shareable PDF reports for your projects.

Calculate cooling capacityInput room dimensions and insulationDetermine optimal pressure requirements
🔧 Utilities
(1)
free
5
HVAC Calculator Load Lite
HVAC Calculator Load Lite
HVAC Calculator Load Lite
Built for HVAC Specialists
Free
📊 Productivity
(0)
6
HVAC Residential Load Calcs
HVAC Residential Load Calcs
HVAC Residential Load Calcs
Calculate cool/heat loads...
$34.99

Perform detailed residential heating and cooling load calculations in the field. This app offers extensive data on building materials, weather, and project management for HVAC engineers and technicians.

Block and room-by-room load calculations1000+ city weather databaseExtensive construction material data
💼 Business
(3)
paid
7
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
📊 Productivity
(5)
paid
8
ManualMaker / Manual creation
ManualMaker / Manual creation
ManualMaker / Manual creation
Create manuals with photos
Free

Easily create detailed manuals by combining photos and text. Organize steps with explanations, add notes and drawings to images, and export your guides as PDF files for seamless sharing. Ideal for work instructions, training, and personal how-to guides.

Organize steps with photos and textImport or take photosAdd notes and drawings to images
📊 Productivity
(2)
free with in-app purchases
9
Grand Theft Auto V: The Manual
Grand Theft Auto V: The Manual
Grand Theft Auto V: The Manual
by Rockstar Games
Free

This official app provides over 100 pages of detailed information for Grand Theft Auto V. Explore game controls, features, neighborhoods, and an interactive map of Los Santos and Blaine County. It's a comprehensive guide for players of the critically acclaimed open-world game.

Over 100 pages of game informationDetailed game controlsExploration of Los Santos and Blaine County
🎮 Games
(5.7K)
free
10
SwiftSize
SwiftSize
SwiftSize
Quick Heat Load Calculator
$9.99

This HVAC tool quickly calculates residential heating and cooling loads on-site. It streamlines the process for professionals, allowing for faster equipment sizing and more customer consultation time. Generate shareable PDF reports of your calculations.

Quick heat load calculationsOn-site measurementsAccurate equipment sizing
💼 Business
(3)
paid
11
Kilonotes-Notes & PDF reading
Kilonotes-Notes & PDF reading
Kilonotes-Notes & PDF reading
Note-Taking &Markup PDF
Free

This app offers a digital notebook experience for handwritten notes, PDF annotation, and study organization. It features freehand drawing, text extraction, AI assistance for learning, and customizable templates to enhance productivity and learning.

Handwritten note-takingPDF annotation and markupAI assistant for learning
📊 Productivity
(4.9K)
free with in-app purchases
12
J-Tech Digital Control
J-Tech Digital Control
J-Tech Digital Control
Professional AV Provider
Free

Easily manage and configure compatible J-Tech Digital A/V equipment directly from your mobile device. Control routing settings, save configurations, and connect devices without needing a physical keyboard or mouse.

Control routing settingsManage multiple devicesRemember device settings
🔧 Utilities
(5)
free
13
Manuals: Access Free Manuals
Manuals: Access Free Manuals
Manuals: Access Free Manuals
Universal Manual Finder
Free

Easily find and access a vast library of user manuals directly from your browser. This app integrates with your browser to help you search for and retrieve manuals for a wide range of products.

Browser extension integrationSearch for web manualsAccess free manuals
📊 Productivity
(8)
free
14
E-manual
E-manual
E-manual
by Able Soft LLC
Free
💼 Business
(0)
15
HVAC Manual Boss
HVAC Manual Boss
HVAC Manual Boss
ACCA Manual J/S/D Calculator
Free

This app streamlines HVAC load calculations, enabling users to quickly generate Manual J, S, and D outputs. It allows for on-the-spot pricing and uses real-world data for accurate estimates, even while on-site.

Manual J load calculationsManual D and S outputsOn-the-spot pricing
💼 Business
(1)
subscription
16
J PREP Friends
J PREP Friends
J PREP Friends
by J PREP INC.
Free

This educational app allows students to review and prepare for lessons at home. It is designed to supplement classroom learning for J PREP Kids students.

Lesson reviewLesson preparationHome study tool
📚 Education
(0)
free
17
ManualJ Lite
ManualJ Lite
ManualJ Lite
HVAC Load Calculator
$4.99
🔧 Utilities
(0)
18
JBM Tools
JBM Tools
JBM Tools
by JBM CAMPLLONG, S.L.
Free

Browse a comprehensive catalog of automotive tools and products. Find specific items by type, reference, or category, and access detailed technical information, images, and tutorials for easy product use.

Browse full product rangeSearch by type, reference, categoryExclusive timing tool kit search
🛍️ Shopping
(1)
free
19
Teachme Biz
Teachme Biz
Teachme Biz
by Studist Corporation
Free

Easily create step-by-step manuals using photos and text. Share your guides online with your team, allowing for collaborative editing and updates. Features include a message function for help and a 'Good job' feature for appreciation.

Create step manuals with photosAdd text explanationsShare manuals online
💼 Business
(0)
free
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
📊 Productivity
(4)
paid

FAQ about Manual J

What are the best manual j apps & games for iPhone?
HVAC Load Calculator Manual J tops our manual j apps & games ranking as of June 2026, with a 4.7-star average from 29 App Store ratings, and it's free to download.
Yes — 15 of the top manual j apps & games we rank are free to download, including HVAC Load Calculator Manual J and HVAC Calculator Load Pro.
HVAC Load Calculator Manual J has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 61+ manual j apps & games on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
HVAC Load Calculator Manual J is a mobile application designed for HVAC contractors to perform professional load calculations. It follows ACCA Manual J 8th Edition methodology for accurate heating and cooling load estimations.
HVAC Load Calculator Manual J offers three modes: Simple Mode for quick estimates, Moderate Mode for standard jobs with component-level factors, and Pro Mode for full Manual J physics and detailed analysis.

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