You’ll soon be able to get your WhatsApp messages to self-destruct after a certain period. The service has started rolling out “disappearing messages,” and when it’s switched on, WhatsApp will delete new chats within seven days. According to the Facebook-owed messaging service, the feature will “make conversations on the app feel as close to in-person chats as possible.” Also, it decided on seven days, because that’s short enough to assure you that your conversations aren’t permanent while still leaving you enough time to get back to recent conversations.

The WhatsApp team has been testing disappearing messages since at least October