Saudi Numberbook is a free iPhone app developed by Mohammed Alotaibi. It falls under the category of Utilities & Tools and aims to provide users with simple and free access to public information. The app utilizes the Kingdom of Saudi Arabia's National Numbering Plan to provide various details such as location, carrier, line type, international phone number, and national phone number.

With Saudi Numberbook, users can easily retrieve information about phone numbers within the Kingdom of Saudi Arabia. Whether it's to identify the location of a caller, determine the carrier, or verify the line type, this app offers a convenient solution. By utilizing the National Numbering Plan, it ensures that the information provided is accurate and reliable.

The app's user-friendly interface makes it easy for users to navigate and quickly retrieve the desired information. Saudi Numberbook is a valuable tool for individuals who frequently receive calls from unknown numbers or need to verify the authenticity of a phone number. Best of all, it is available for free, making it accessible to a wide range of users.