みんなの玉入れ is an iPhone app developed by OTOUCH INC. that allows users to experience a mini sports day event. With this app, you can compete with your friends and family in a ball-throwing competition.

The app provides a virtual environment where you can aim and throw balls into different targets. You can challenge your friends to see who can score the highest points or compete against yourself to improve your throwing skills. The game is designed to be simple and intuitive, making it accessible to users of all ages.

Overall, みんなの玉入れ offers a fun and engaging experience for those who want to enjoy a mini sports day with their loved ones. It's a great way to have some friendly competition and test your throwing abilities.