Terrible app. After the newest update, never receive any Ruby after watching Ads even after waiting through the entire enforced Ad "Wait Interval", watch the Ad after interval and still no Ruby received. You need to fix this Ad Bug!
Developer reply
app, please don’t hesitate to contact us through My Page > Settings > Contact Us in the HIGHER app or email us at cs@vbptr.com anytime! Your feedback is valuable and helps us make HIGHER even better. Thank you!