Rule of 3 - Lite is an iPhone application designed to assist users in performing product multiplication using the rule of 3. This application proves to be the most useful tool for anyone needing to calculate proportions and solve problems related to product multiplication.

With Rule of 3 - Lite, users can easily perform calculations and obtain accurate results. The application allows users to input the given values and calculate the unknown value using the rule of 3 formula. The calculated result can be conveniently copied to the clipboard with a shortcut button, making it easy to use in other applications or share with others.

Additionally, Rule of 3 - Lite offers a premium account feature that allows users to save calculations and view them in their history. This feature proves to be beneficial for users who frequently perform similar calculations and want to keep track of their work.

Whether you are a student, professional, or anyone in need of product multiplication calculations, Rule of 3 - Lite provides a user-friendly and efficient solution. Its straightforward interface and powerful features make it a valuable tool in the realm of business and productivity applications.