If your friend doesn't play Cooking Diary yet, you can send them an invitation.
To do this:
1. Go to TastyMe
2. Select the Friends tab
3. Go to the Add tab
4. Tap the Invite Friends button. You will see a special window with the rewards you will receive for the first five invited friends who install the game5. Tap the Invite Friends button in the window that opens
6. Select a social network to send the invitation.

You will receive a unique referral link that you can send to an unlimited number of people.