248+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our allday hvac calc list covers 248+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | Yes | May 2026 |
| 2 |  | Free was $29.99 | 5.0★ (40) | No | Yes | Aug 2026 |
| 3 |  | Free | 5.0★ (7) | No | Yes | Aug 2026 |
| 4 |  | Free | — | — | No | Jul 2026 |
| 5 |  | Free | — | No | Yes | Jul 2026 |
| 6 |  | Free | 4.2★ (185) | No | No | Aug 2026 |
| 7 |  | Free | — | No | Yes | Jun 2026 |
| 8 |  | Free | — | No | Yes | Jul 2026 |
This app offers three specialized modules for HVAC engineers: a psychrometric calculator for air properties, a pipe calculator for fluid dynamics and selection, and a duct calculator for air speed and pressure loss. It provides detailed calculations and reference formulas in both SI and IP units.
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 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.
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 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 tool assists HVAC engineers with design checks and quick calculations. It offers various tools for ducting friction loss, pipe sizing, ventilation, and heat load estimations, providing instructions and formulas for each calculation.
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.
This app provides HVAC professionals with over 900 essential formulas and calculations for load calculations and system design. It supports both US and Metric units, offers instant switching, and includes 23 calculator categories and over 460 unit conversions. Designed for field use, it works offline and allows users to save and share results.
Calculate pipe sizes for liquid systems, including hot and chilled water. Input flow rate, head loss, diameter, or velocity to determine other properties. Supports various liquids, pipe materials, and fittings, with English or metric units.
This HVAC tool aids in piping system design, offering calculators for friction loss, velocity, and heat load. It includes a Cv tool and a specialized calculator for balancing contractors to determine valve settings and flow rates.
This app provides engineers and professionals with tools for pipeline flow calculations, unit conversions, and coordinate transformations. It offers professional-grade accuracy and works offline, making it ideal for field use. Core features are free, with optional ads supporting the application.
Quickly size low-pressure gas piping systems by inputting flow, pressure drop, diameter, or velocity. Includes detailed gas and pipe properties, fitting data, and unit conversion.