To send free-form messages, you must first connect as Friends.
Open the user’s profile you’d like to message.
Tap Add Friend.
Once they accept your request, you can start messaging each other.
Please note that some users may have disabled Friend Requests, which prevents others from adding them.
To enable or disable Friend Requests:
Open the Insight Timer app.
Tap the menu icon (☰) in the top-left corner.
Tap Settings.
Select Account & Privacy.
Tap Friend Requests under Privacy.
Toggle the feature on or off.
When enabled, other users can send you friend requests and exchange messages once connected.