Size Matters is a free Android application developed by Raul Apps, available exclusively for people over 18 years old. The application is a guide that provides information about lengthening the virile member without surgery. The guide includes techniques, formulas, and articles suitable for enlarging the member size, including Kegel and Jelqing exercises, healthy foods, and tips and tricks to increase the amount of semen and improve its quality.

The guide aims to provide the truth about what to expect from pills, pumps, exercise, and healthy eating to help users gain a few more centimeters, which can improve their self-esteem and satisfaction with their partners. The application also includes a feature to check whether the user's member size is within the normal range. However, it is important to note that partner satisfaction is not solely determined by member size.