良心计算器
Response from developer
感谢喜爱!我们会持续更新迭代,完善更多实用功能

This powerful scientific calculator offers a modern UI and robust engine for users of all levels. It handles basic arithmetic to complex engineering equations with smart expression parsing and a high-precision display. Enjoy a seamless calculation experience with features like history recall and dark mode.
5.6
October 13, 2026
Fix front and back end switching issue
$1.99
终身会员
解锁 Pro
感谢喜爱!我们会持续更新迭代,完善更多实用功能
RedCrab Calculator supports basic arithmetic and advanced scientific functions including trigonometry, logarithms, exponents, roots, and modulo operations. It also features smart expression parsing for complex equations with nested parentheses.
Yes, the free version of RedCrab Calculator contains advertisements. Users can unlock a pure, ad-free experience by purchasing VIP privileges.
Yes, RedCrab Calculator automatically saves your calculation history. The 'Ans' button allows you to instantly recall your last answer for multi-step calculations.
RedCrab Calculator is available on iPhone, iPad, and iPod. It supports native Dark Mode for eye protection.
RedCrab Calculator features a high-precision display optimized for large numbers, showing more significant digits and eliminating the frustration of hard-to-read scientific notation.
The latest version of RedCrab Calculator, 5.6, was last updated on October 13, 2026. The app was originally released on December 28, 2014.
RedCrab Calculator has an age rating of 4+, making it suitable for a wide range of users. It is categorized under Utilities.
VIP membership in RedCrab Calculator provides an ad-free, immersive calculation experience. It also grants access to exclusive premium features not available in the free version.