Is Peetnik Rewards free to join? June 06, 2019 00:45 Updated Yes, the Peetnik Rewards program is free to join. Simply download the Peet's app in the App Store or Google Play. Related articles What is Peetnik Rewards? Why do you need my birthday? Can I earn points at every Peet's location? How long are rewards valid? Can I tip when paying with my Peet's Card in my app?