42+ iOS apps curated and reviewed
Johnstone Supply HVACR is the household name in johnstone supply, but it's far from the only option. We track 42+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (5) | Yes | No | May 2026 |
| 2 |  | Free | 3.5★ (2) | No | No | May 2026 |
| 3 |  | Free | 4.9★ (866) | No | No | Aug 2026 |
| 4 |  | Free | 3.0★ (68) | No | No | Jun 2026 |
| 5 |  | Free | 4.2★ (111) | No | No | Aug 2026 |
| 6 |  | Free | — | No | No | May 2026 |
| 7 |  | Free | 4.6★ (3.6K) | No | No | Jul 2026 |
| 8 |  | Free | 4.8★ (5.2K) | No | No | Aug 2026 |
Access a comprehensive catalog of HVAC and refrigeration parts, supplies, and equipment. Check real-time inventory, scan product barcodes for quick identification, and utilize integrated contractor tools. Request an account to streamline your procurement process.
This app allows users to manage business orders and account information on the go. It provides real-time pricing, company-wide availability, and the ability to scan product barcodes for quick ordering. Users can also view order history and contact branches for special requests.
Access a vast selection of plumbing, heating, and HVAC supplies with real-time customer support. Quickly find products using barcode scanning, reorder frequently purchased items, and access helpful resources like install guides and spec sheets. Enjoy fast shipping to most of the US.
Access a vast catalog of plumbing, HVAC, and MRO supplies on the go. Check real-time inventory, pricing, and product specs. Order online for quick in-store pickup and track your orders.
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.
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.
Access a vast database of product information for air conditioning and refrigeration systems on your mobile device. Quickly find specifications, diagrams, and diagnostic tools. Includes AI-powered assistance and a "Where To Buy" locator.
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.
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.
Estimate the cooling capacity needed for your data center. This tool considers factors like space, occupants, and heat output to help you maintain optimal temperature and humidity. It provides instant results as you update inputs, serving as a guide for system selection.
This app helps HVACR technicians diagnose and resolve system issues. It guides users through common symptoms, identifies potential causes, and recommends solutions. An offline database is available for use in remote locations.
Access a vast catalog of industrial and maintenance supplies from your mobile device. Browse and order over 800,000 products for your plant and facility needs.
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 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 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.
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 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.
This app provides HVAC professionals with a digital toolbox for everyday tasks. It offers product information, installation guides, and advanced features to streamline work, including project management and hydronic balancing tools.