You can change your password at any time by logging into your Underline account at app.underline.com and selecting the “Edit” button within the “Your Contact Information” box. You will then be prompted to input your current password and confirm your new password. If you’ve forgotten your password, select “Forgot Password” on the Underline account login page and you will be instructed to input your email address. A password reset link, valid for 3 hours, will then be directly sent to you.