SOP is a free online sales mobile management application designed for iPhone users, aimed at facilitating customer interactions and enhancing online sales efforts. It provides essential features for sales professionals, including customer messaging, CRM capabilities, and call management, all integrated into one platform.

Key functionalities of SOP include SSO login, which allows users to access the app using existing company or Gmail accounts. The messaging feature supports multi-channel communication with customers, while the CRM component enables users to securely store and organize customer information. Additionally, the app offers notification alerts for messages and a call feature to manage customer communications effectively.