1. Do I need to pay extra charges for enabling push notification?
1. No, you don’t need to pay any extra charges for using push notification.
Simply create an firebase account and upload:
1. Firebase configuration file and FCM server key from the Google firebase.
2. How many times I can send push notification to my app users using Quikapp?
There is no restriction for sending the push notification to your users. You can send N number of push notification to your app users via Quikapp.