How to Enable iMessage
- Just like for FaceTime, the first step is to create an Apple ID if you haven't already. You can check out this article from Apple to learn how to create an Apple ID online, or create one on your iOS device by going to Settings > iCloud > Create a new Apple ID.
- Next go to your phone's Settings > Messages and turn on iMessage, using the switch at the top of the page. If the switch is already green, it's already on. Make sure to keep the Send as SMS switch off, as seen below.
- Now you'll be able to use TextNow and iMessage separately.
Note: Since iMessage won't send as SMS if you ever have any issues with your data the iMessage will not fall back to SMS - you'll need to use the TextNow app to send text messages.