PJ is a free social networking and matching app developed by ECLIPSE K.K. The app's main feature is its ability to help users find their ideal match based on their preferences. With PJ, users can create a profile and upload a self-introduction video to increase their chances of finding a high-quality match. The app also boasts a 24/7 monitoring system and mandatory age verification to ensure user safety and satisfaction.

To use PJ, users can search for potential matches, like profiles that interest them, and start a conversation with a match that likes them back. However, female users who have not completed age verification cannot send or read messages, while male users need to upgrade to a paid membership to start a conversation.

PJ's privacy policy and terms of service are available on the app's website. The app is not intended for compensated dating or sexual activities and strictly complies with the law to provide a safe and secure environment for users to find meaningful connections.