Instantly solve any quadrilateral with this comprehensive calculator. Features multiple input modes, detailed calculations, and live visualization. Ideal for students, engineers, and geometry enthusiasts.






246+ iOS apps curated and reviewed
With an average user rating of 4.4★, the quadrilateral calculator category is one of the App Store's strongest. Browse all 246+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $2.99 | 5.0★ (1) | No | No | Jun 2026 | |
| 2 | Free | 4.6★ (36K) | Yes | Yes | Aug 2026 | |
| 3 | Free | 2.4★ (5) | No | Yes | May 2026 | |
| 4 | Free | 4.7★ (61K) | No | No | Aug 2026 | |
| 5 | Free | 4.6★ (10K) | Yes | Yes | Aug 2026 | |
| 6 | $5.99 | 4.7★ (6.3K) | No | Yes | Aug 2026 | |
| 7 | Free | 4.5★ (146K) | Yes | Yes | Aug 2026 | |
| 8 | Free | 4.6★ (358K) | Yes | Yes | Aug 2026 |






Instantly solve any quadrilateral with this comprehensive calculator. Features multiple input modes, detailed calculations, and live visualization. Ideal for students, engineers, and geometry enthusiasts.






This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.




Easily calculate the area of various geometric shapes by inputting their dimensions. The app also facilitates unit conversions between millimeters, centimeters, meters, inches, feet, and yards.


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 offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.


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 utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.


This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.


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 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.


A fast, clean, and easy-to-use calculator app offering both basic and advanced scientific functions. It features a minimal design, calculation history, and supports dark and light modes for a comfortable daily calculation experience.


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 advanced calculator offers a comprehensive history of your calculations and supports complex functions like fraction manipulation, angle conversions, and equation solving. It also includes specialized tools for engineers and a dice roller.


This app offers a comprehensive calculator with both simple and advanced modes. It includes an equation solver with step-by-step explanations, calculation history, graphing capabilities, and table generation for multiple inputs. Supports a wide range of mathematical operators and functions.




This app offers a comprehensive suite of calculating tools, including basic, scientific, and fraction solvers. It features an enhanced history log for tracking and sharing past computations, along with customizable options for a personalized user experience. Enjoy a clean interface and reliable precision for all your mathematical needs.


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 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.


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 app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.