Only the current version so far — new entries appear as the app ships updates.
Chill Letter: Pen Pal App is a social app by Young Lion Game with 100+ downloads (about 338 estimated). +4 installs in the last 7 days. Released Jul 30, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Meet pen pals worldwide, share letters, and build meaningful friendships.”
