247+ iOS apps curated and reviewed
HVAC Calculator ProX is the household name in hvac calculator prox, but it's far from the only option. We track 247+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $0.99 | — | No | No | Aug 2026 |
| 2 |  | Free | 4.8★ (17K) | No | No | Aug 2026 |
| 3 |  | Free | — | — | No | Jul 2026 |
| 4 |  | $24.99 | 2.8★ (5) | No | Yes | Jul 2026 |
| 5 |  | Free was $1.99 | 4.8★ (34) | No | Yes | Aug 2026 |
| 6 |  | Free | 4.7★ (1.6K) | No | No | Aug 2026 |
| 7 |  | Free | — | No | Yes | Aug 2026 |
| 8 |  | Free | 4.6★ (32) | No | Yes | Aug 2026 |
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.
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.
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.
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 professional HVAC duct sizing and psychrometric calculations in a single tool. It offers detailed calculations for various duct types and materials, along with comprehensive humid air property analysis. Designed for HVAC professionals, it replaces traditional ductulators with accurate digital functionality.
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.
This app provides quick, rule-of-thumb HVAC load calculations for various building types. It estimates heating and cooling loads, as well as air flows, based on building type, area, and occupancy. Results can be emailed with an Excel spreadsheet attachment for further analysis.
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 provides quick and easy calculations for HVAC professionals and enthusiasts. It simplifies complex formulas for energy use, airflow, and duct dimensions, making them accessible on your iPhone or iPad.
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 app provides HVAC technicians with an AI assistant for diagnostics, professional-grade calculators, and offline code references. It helps troubleshoot issues, size ducts, calculate efficiency ratings, and access industry standards quickly in the field.
