BitChat stores messages only in device memory and deletes them after delivery or a set timeout, providing ephemeral messaging with no central database and securing content through end-to-end encryption.

Quotes that support claims

Messages are stored in the device’s memory by default, and they vanish after delivery or a predetermined amount of time.

The application values user privacy by applying several layers of security, such as end-to-end encryption and ephemeral messaging, which saves the content in memory only.