How can I invite friends?
Tap on the plus (+) sign at the top right side of the screen. Then tap the "Invite" button to invite your friends using any of the social apps installed on your device.
Over which method can I invite my friends to Coin Pop?
The methods for inviting friends are dependent upon the communication/social apps that you have installed on your device.
Can I also add friends who are already registered with Coin Pop?
No. To earn coins along with a friend, they need to be a new user of Coin Pop.