Please use Semaphore Training (Next) for better experience
Please use Semaphore Training (Next) for better experience with Learning Mode
https://play.google.com/store/apps/details?id=com.saysua.semaphoretraining.next
* I created this app when I was a student, so now I lost the App Credential when my laptop is crack. So I create new version of this app call "Semaphore Training (Next)" Please install and use it.