Mobile 
Web & 
Windows- Navigate to your profile in the bottom right corner
- Click on “Edit Profile”
- Click on your “Username”
- Enter your new username
- Your username will automatically save when you exit the “Edit Profile” screen
- Navigate to picsart.com
- Click on your profile picture in top right corner
- Click on “Settings”
- Click on “Username”
- Enter your new username
- Click on “Save Changes”