Need help, found a bug, or have a suggestion? We'd love to hear from you.
Email: zachsong@gmail.com
We typically reply within a couple of days.
Badminton Rotation teaches doubles and mixed-doubles positioning, covering and rotation through clear 2D animations — step by step, fully offline, in 14 languages.
Does the app need internet? No — it works completely offline.
Does it collect my data? No data is collected; see our Privacy Policy.
How do I change the language? Go to the "Me" tab → Settings → Language.
中文:需要帮助、反馈 bug 或建议?请邮件 zachsong@gmail.com。《羽球轮转》通过 2D 动画教羽毛球双打/混双的站位与轮转,完全离线,支持 14 种语言。语言可在「我的 → 设置 → 语言」切换。