Use APKPure App
Get Kasin Referral old version APK for Android
이 앱은 추천 사용자 및 인센티브를 저장하는 데 사용됩니다.
There is no signup option openly. System provide the login details to user i.e. only authorized can access application and refer to other user then he will get incentive as referral bonus. As well as user earn 500 incentive points he may transfer points to bank