System maintenance was held as follows.
2015/07/15 00:00 ~2015/07/16 00:00 (GMT)
Once maintenance is completed, a new version of the application will be released (exact timing may vary by area). Please update your application accordingly.
Depending upon the registered county or area of use, under-aged users may not be able to use server sync features after installing this update.
We are sorry for the inconvenience and appreciate your kind understanding.
Smart Tennis Sensor team