ポケット手紙 - 文通と手紙の記録・整理アプリ is a lifestyle app by DIP-milktea with 0+ downloads. Install growth, rank history, SDKs and ad networks.
From the store listing: “I take pictures of the letters I receive and save them. It's a pen pal record book where I can see at a glance the exchanges with each person and the letters I'm waiting for replies to.”
