It's called Retrospec. It's a social network app that only Recolle residents who also have past lives can use. It can install itself on any smartphone or any devices, but any non-users can't see it. I don't know if it can show itself to you, but...

[But as he takes out his phone, his eyes widen at what he saw on its home screen.]

I-It's gone... The app is gone...

[It is true. Retrospec's recognizable app icon is nowhere to be seen in his smartphone.]

B-But that means... Was I banished from the app?