249+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our cool calc list covers 249+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 2.0★ (3) | Yes | No | Aug 2026 |
| 2 |  | Free | — | No | Yes | Aug 2026 |
| 3 |  | Free | 4.6★ (313) | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | Free | 4.2★ (185) | No | No | Aug 2026 |
| 6 |  | Free | 4.8★ (4.5K) | Yes | No | Aug 2026 |
| 7 |  | Free | 4.9★ (409K) | Yes | No | Aug 2026 |
| 8 |  | Free | 4.8★ (81) | No | No | Jul 2026 |
Capture precise 3D room scans using your device's LiDAR sensor. Organize projects, integrate with a web platform for advanced visualization, and export models in industry-standard formats. Ideal for professionals needing accurate spatial data.
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 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.
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 utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
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 offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
This utility helps you determine the appropriate cooling capacity for an air conditioner based on room size and other factors. It simplifies the process of selecting the right unit to ensure optimal comfort and energy efficiency.
A visually appealing and straightforward calculator app for iPhone and iPad. It offers a unique user interface with support for basic and scientific calculations, various number base conversions, and currency and unit conversions.
This app offers ten powerful calculators, including scientific, graphing, and financial tools, along with numerous worksheets and conversion options. It's designed to handle complex calculations, currency conversions, and financial planning with advanced features and customizable displays.
This app offers a powerful calculator with a unique drag-and-drop memory function. It also includes tools for measurement conversion, debt amortization, and real-time currency exchange rates.
A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.
This app assists in calculating heat gain for cold rooms, supporting various heat sources and construction materials. It offers project organization and in-app help, with an optional subscription for PDF export.
