This app is vary mystic tools.
It can test whether your face is smile or not.
And can share your smile face to your sociality.
This app has been updated by Apple to use the latest Apple signing certificate.
Fix a bug in Chinese version.
The developer, guohui li, has not provided details about its privacy practices and handling of data to Apple.
No Details Provided
The developer will be required to provide privacy details when they submit their next app update.
Up to six family members will be able to use this app with Family Sharing enabled.