Rapid & Quick Calculator Pro

* Over 170,000 Downloads Worldwide
This is a totally easy-to-use calculator. It has all the basic features you'd expect from a calculator, as well as additional useful functions like the ability to calculate sales tax and discounts.
FEATURES
* History Tape - Reuse answer with a single tap
* Equation
* Sales Tax Calculations - Multiple tax settings with swipe change
* Discount Calculations with percentage operator (e.g., 100 - 30% = 70)
* Precise Rounding Settings
* Multiple Color Themes
* Multiple Font Sizes and Type Faces
* Left and Right Arrow Cursor Key - easy-to-edit expression
* Share Expression and Answer with other apps
* Support iPad
* Support Slide Over and Split View in iPad (If available)
* Sound Effects
We welcome your feedback.
URL Scheme
zippycalc://
This is the paid version of the app. A free version is also available.
Paid version doesn't show ad and has four tax keys. (Free version has two tax keys)