247+ iOS apps curated and reviewed
Operational Range Calculator is the household name in operational range calculator, 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 |  | Free | — | No | No | Jun 2026 |
| 2 |  | $3.99 | 1.0★ (1) | No | No | Jun 2026 |
| 3 |  | Free | 4.9★ (404K) | Yes | No | Aug 2026 |
| 4 |  | Free | 4.7★ (60K) | No | No | Aug 2026 |
| 5 |  | $29.99 | 5.0★ (1) | No | No | Aug 2026 |
| 6 |  | Free | 4.9★ (23) | No | No | May 2026 |
| 7 |  | Free | — | Yes | Yes | Jul 2026 |
| 8 |  | $2.99 | 4.0★ (8) | No | No | Jul 2026 |
This app helps electricians and technicians learn about electric motor rewinding, wiring, and repair. It includes various wiring diagrams and a calculator for motor specifications like speed, horsepower, and frequency.
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 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 app provides engineers, electricians, and inspectors with quick, standards-based calculations for electric motors and their components. It offers instant access to motor specifications aligned with NEC and IEC standards, with intuitive navigation for selecting motor type, power, voltage, and code letter.
Estimate your RC car's top speed by inputting details about its gearing, motor, and batteries. Record your estimates and actual speeds to compare different setups.
This physics calculator quickly determines electric motor power, torque, or speed. It supports various units, offers instant calculations with copyable results, and includes reference formulas. Optimized for everyday use, it's a lightweight tool for engineers and hobbyists.
A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.
A straightforward calculator app designed for simplicity and ease of use. It features large buttons and a clear display, supporting basic arithmetic operations like addition, subtraction, multiplication, and division.
This app offers a straightforward calculator with a large display and oversized buttons for easy operation. It's designed for everyday tasks, enabling users to perform fundamental arithmetic like addition, subtraction, multiplication, and division with clarity and convenience.
Calculate motor power, torque, power factor, and temperature rise. Includes unit converters for various measurements and easy access to company news, products, and contact information. Save and email calculation history.
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
This app offers a versatile calculator with both basic and scientific functions. It includes advanced features like currency and unit conversions, customizable themes, and history tracking. Optimized for both portrait and landscape modes, it's designed for users needing precise calculations and conversions.
This ad-free utility offers a clean and intuitive interface for performing calculations. It includes essential features like a backspace button and support for parentheses, making complex equations manageable. Enjoy a streamlined calculation experience without interruptions.
This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.
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.
A universal calculator designed for ease of use with large buttons. It offers a straightforward interface suitable for students, professionals, and everyday household tasks.
This application calculates and graphs mathematical formulas with multiple variables. It allows for programming complex equations, plotting graphs with variable manipulation, and saving frequently used formulas. It also generates tables of results for easy export.