Ossel ABC is a free Android app developed by Gold System that offers an all-in-one platform for managing health and insurance-related activities. The app has been recently updated with new features that include the ability to check the list of affiliated medical centers, upload and send documents to OSSEL, generate a virtual membership card, and request orthopedic equipment. Additionally, the app allows OSSEL to send messages and reminders to its members.

The app has a user-friendly interface that makes it easy to navigate and use, even for those who are not tech-savvy. The app also ensures the privacy and security of users' personal and medical information. Ossel ABC is an ideal app for those who want to stay on top of their health management and insurance-related activities in a simple and convenient way.