Will my Kik messages appear on my phone bill?
Your Kik messages shouldn't appear on your phone bill.
Kik uses your existing data plan or Wi-Fi to send and receive messages, including content messages from Kik Cards.
When you're using Wi-Fi, the data is completely free. When you're using your existing data plan, the cost is set by your wireless provider. If your Wi-Fi isn’t working, or if you're travelling outside of your normal area of service, you may incur charges.
If you're using data instead of Wi-Fi, your data usage will probably appear on your phone bill.
Check with your wireless provider to see how they show app/data usage on your bill.