The Persona Series is set to receive an official companion app in Japan. According to Siliconera, Persona O.A. will be a "support app" containing news and updates about the series as well as a built-in exploration game. It's not yet clear if the app will head west. Likely, if the app makes the jump, it will do so after a bit of a delay.
From Siliconera's translation, it looks like fans will be able to explore the Mementos palace from Persona 5, earning items and "Persona Points" to summon more characters in the Velvet Room. "Conversation events" will also occur, where a character from the game will appear and provide dialogue if you engage and attempt to raise your social link with them.
Persona Points can also be gained from "QR Codes and serial codes", which can then be used to redeem exclusive web content and gifts.
Eager fans can pre-register for the app on the official webpage via Twitter, Line or Email. The exact release date for the app is unconfirmed, but Atlus has set the release window for sometime in Spring 2018.
In Persona 5 the player-character and his friends tapped into their persona by discovering a similar application on their smartphones. So the support app has a pretty cute introduction point for fans of the game.
In other Persona news, Persona 5 and Persona 3 are both getting dance-based spinoff games, Persona 5 Dancing Star Night and Persona 3 Dancing Moon Night later this year.