SOLMATTER Co., Ltd. is the App Store seller of the game. In a 요즘IT interview of 30 Sep 2026, Kim Sol, a former surgeon who became a stay-at-home parent and solo developer, describes making it and earlier apps such as the parenting-record app Pieceful with AI tools; the interview links this App Store listing and Kim Sol's Threads account.
A paid iPhone baseball career game: raise a high-school pitcher, throw the key pitches yourself, and if no pro team drafts you, be reborn and try again. The solo developer says it was planned with ChatGPT and built in Codex.
