227+ iOS apps curated and reviewed
Out of 227+ led calculator apps on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $2.99 | 4.8★ (18) | No | No | Aug 2026 |
| 2 |  | Free | — | No | No | May 2026 |
| 3 |  | Free | 4.7★ (1.7M) | Yes | Yes | Aug 2026 |
| 4 |  | $2.99 | 4.8★ (8) | No | No | Aug 2026 |
| 5 |  | Free | — | Yes | No | Aug 2026 |
| 6 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 7 |  | Free | 4.7★ (61K) | No | No | Aug 2026 |
| 8 |  | Free | 4.7★ (25K) | No | Yes | Aug 2026 |
This app calculates LED screen specifications including pixel count, dimensions, and power draw. It can generate pixel grids for content mapping and export them as image files or Photoshop scripts. Users can request new LED makes and models to be added to the database.
This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.
Calculate the correct series resistor needed to safely power light-emitting diodes. Input supply voltage, LED voltage drop, current, and the number of LEDs to find the required resistor value and wattage.
This comprehensive electronics toolkit offers over 130 interactive calculators, circuit tools, and guides. It's designed for users of all levels, from beginners to professionals, to assist with learning, prototyping, and quick calculations in electronics engineering.
Easily plan and configure LED panels for any project. This tool calculates dimensions, pixel counts, power needs, aspect ratios, and processor requirements quickly and accurately. Keep your production moving with fast, on-device results.
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 free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.
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 customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.
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 advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.
This app transforms your smartphone into a comprehensive lighting design tool. It offers advanced calculations for room lighting, LED analysis, and efficiency, alongside quick conversions and essential technical resources. Ensure your lighting projects meet all standards and optimize energy usage.
This app simplifies selecting the right video processor for LED display projects. It offers seamless calculations, advanced filtering, and instant access to product specifications, serial number lookup, and support ticket creation.
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.
This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.
This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.
A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.
This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.
This utility simplifies calculating LED resistors by handling various voltages, decimal values, and multiple LEDs. It offers intuitive input methods for power supply and LED ratings, making complex calculations straightforward.