This app has been updated by Apple to use the latest Apple signing certificate.
"A new and improved version of our app with animated videos, redesigned interface and additional features! Follow our adorable characters on a fun journey to learn Chinese!
-- Optimized for iOS 11.0
-- Animated videos and comic strips
-- New games to practice reading and listening skills
-- Cleaner and more friendly user interface
-- Follow your course progress
-- Take notes
-- Receive notifications with lesson reminders. The more you practice, the more you learn!
-- Receive notifications with new words to build your vocabulary"