229+ iOS apps curated and reviewed
If you already know HVAC Load Calculator Manual J, this is the deeper bench. 229+ hvac load calculator manual j apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free was $1.99 | 4.8★ (34) | No | Yes | Aug 2026 |
| 2 |  | Free | — | No | Yes | May 2026 |
| 3 |  | Free | 4.8★ (4.5K) | Yes | No | Aug 2026 |
| 4 |  | Free was $12.99 | 4.0★ (1) | No | Yes | Jun 2026 |
| 5 |  | Free | 5.0★ (1) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.8★ (20) | No | Yes | May 2026 |
| 7 |  | Free | 4.8★ (17K) | No | No | Aug 2026 |
| 8 |  | Free | 4.2★ (185) | No | No | Aug 2026 |
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.
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.
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.
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.
This utility app simplifies HVAC sizing by calculating BTU/h capacity and recommending equipment. It offers unit conversions, price estimates, and energy consumption comparisons. Advanced features can be unlocked via in-app purchases.
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.
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.
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.
This app provides HVAC professionals with quick access to product information, tools, and support. It allows users to check pricing, availability, find locations, and manage warranty claims. Features include a PT calculator, duct calculators, and a flashlight tool for on-site work.
This tool simplifies HVAC duct sizing for professionals. It quickly calculates dimensions for rectangular, round, and oval ducts based on airflow, friction loss, and velocity, ensuring optimal ventilation system performance.
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.
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.
This app streamlines HVAC/R documentation, cutting paperwork time in half. It allows for quick unit scanning, precise refrigerant tracking, and ensures compliance with EPA regulations. Service records are stored permanently, moving with the user's career.
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.
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.
This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.
This app provides Bryant HVAC dealers with a comprehensive tablet selling solution. It allows for saving homeowner profiles, updating dwelling information, searching and assigning products, and accessing product literature. The tool also includes system audit and needs analysis features, linking to cost calculators and other enterprise solutions.
This app provides electricians and apprentices with essential tools for on-the-job tracking and NEC-aligned calculations. It helps with circuit analysis, load calculations, conduit fill, motor and transformer computations, and voltage drop assessments for field use and exam preparation.
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.