This app was removed from the App Store.
iOS Universal Education
Tips: Search tinman find more;-)
儿童数学游戏”（“math games for kids”）
The small duck slipped out from the sewer. It descended into a big sink and travelled along the current. It passed by the feet of giants, went through dark pipelines, swiftly crossed filter bars and arrived at where only champions belong…
UI optimization and BUG fix.