250+ iOS apps curated and reviewed
If you already know Touch RPN calc, this is the deeper bench. 250+ touch rpn calc apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.4★ (208) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.6★ (4.7K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | — | No | Yes | May 2026 |
| 4 |  | $4.99 | — | — | No | Aug 2026 |
| 5 |  | Free | 1.0★ (1) | No | No | Aug 2026 |
| 6 |  | $4.99 | — | No | No | Aug 2026 |
| 7 |  | Free | 3.5★ (2) | No | No | May 2026 |
| 8 |  | Free | — | No | No | May 2026 |
This app offers a powerful RPN calculator with financial and scientific functions, mimicking popular industry-standard models. It includes programming capabilities and expandable flavors for diverse calculation needs.
This app offers a comprehensive suite of 10 powerful calculators and 10 financial worksheets, designed to handle everything from basic arithmetic to complex scientific and financial calculations. It includes features like unit conversion, currency exchange, graphing, and statistical analysis, making it a versatile tool for students and professionals.
This application provides a straightforward reverse Polish notation (RPN) calculator with essential functions and memory operations. It also includes integrated unit conversions for various measurements, allowing for quick conversions directly within the app. The calculator remembers your session, preserving all registers and memory values for future use.
This utility app offers a scientific calculator with Reverse Polish Notation (RPN) mode for faster calculations. Its simple interface is designed for engineers and scientists, providing efficient computation on iPhone devices.
This scientific calculator displays major functions on screen and utilizes a stack for calculations. It supports a stack of up to 4 values but can store many more numbers depending on device memory.
This app provides a straightforward reverse Polish notation (RPN) calculator experience, inspired by classic HP models. It offers a clean interface with large buttons for quick calculations on iPhone, iPad, and Apple Watch, along with a convenient Today Extension for immediate access.
A straightforward calculator utilizing Reverse Polish Notation (RPN) for everyday calculations. It offers a four-level visible stack with a total capacity of 100 positions, providing visual feedback on stack fullness. Basic arithmetic operations and stack manipulation functions are included.
A minimalist reverse Polish notation calculator for iOS devices. It offers Standard, Binary, and Hex modes for quick calculations and programmer-friendly conversions, featuring a clean interface and a 4-level stack.
This app simulates a vintage programmable calculator from the mid-70s, offering enhanced features beyond the original. It allows users to run existing programs, manage virtual cards, and utilize advanced functions for scientific and engineering tasks.
This scientific calculator offers Reverse Polish Notation (RPN) for faster calculations. It includes 54 mathematical functions, coordinate conversions, and unit conversions, all within a simple interface.
This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.
This utility app offers a Reverse Polish Notation (RPN) calculator experience for iOS devices. It features customizable key layouts via swipe gestures and long-press options for stack items. External keyboard support is also available.