219+ iOS apps curated and reviewed
If you already know ROE Calculator, this is the deeper bench. 219+ roe calculator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (1) | No | No | May 2026 |
| 2 |  | Free | 4.9★ (33K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (3.5K) | No | Yes | Jul 2026 |
| 4 |  | Free | 4.8★ (3.6K) | No | No | Jul 2026 |
| 5 |  | $12.99 | 4.9★ (3.8K) | No | No | Jul 2026 |
| 6 |  | Free | 4.7★ (23K) | No | Yes | Jul 2026 |
| 7 |  | Free | 4.7★ (15K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.7★ (3.2K) | No | Yes | Jul 2026 |
This application provides essential technical calculations for LED screens, including ballast, pixel, and power requirement analysis. It's designed to be the ultimate tool for LED technicians during on-site work and production preparation.
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 free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.
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 app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.
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 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 app provides a straightforward calculator experience with a comprehensive history log of all your computations. Customize the keyboard, display, and history records to suit your needs. Easily add annotations and titles to past calculations for better organization.
This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.
A straightforward and reliable calculator application designed for iPad and iOS 9. It offers a standard calculation experience with a charming piano sound effect and is optimized for high-resolution screens.
This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.
This app serves as a powerful scientific graphing calculator, offering advanced mathematical functions and graphing capabilities. It includes a built-in AI assistant for math queries and a comprehensive user manual. Ideal for students and professionals needing complex calculations and visualizations.
This app offers a user-friendly calculator experience with a focus on ease of use. It features a live voice input, an ergonomic layout with large keys, and a usage history for quick reference. Results can be easily copied or emailed.
A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.
This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.
A highly customizable calculator app offering a modern interface and powerful features. Personalize themes, button layouts, and visual elements to your preference. Track and save calculations with a detailed history, and access scientific functions when needed.
A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.
This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.
This app is a comprehensive obstetrics calculator that provides detailed pregnancy information. It offers flexible input options and displays thorough results including estimated due dates, gestational ages, and fetal growth estimates.
This app offers a comprehensive financial calculator with over 105 functions for business, statistics, and general math. It simplifies complex calculations like loan payments, time value of money, and investment analysis with an intuitive interface and visual tools. Easy modes are available for users new to financial calculations.