PhoneNumberKit

PhoneNumberKit is a Swift library designed for parsing, formatting, and validating international phone numbers efficiently in iOS applications. It aims to simplify working with phone number data across diverse formats and regions, providing developers with a robust, user-friendly solution. This library is inspired by Google's libphonenumber project but is tailored for seamless integration into Swift-based iOS applications.

My contribution for PhoneNumberKit in Swift for iOS:
I have added a feature for checking phone numbers even if the sign "+" has been omitted.

https://github.com/marmelroy/PhoneNumberKit/pull/184