To enable cloud sync (so you can access your WhenDid.io from different machines) and click notes, users need to Sign Up which involves simply registering with their email address.
To sign up for WhenDid.io:
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Click the User Profile in the top left of the app to open the User Menu.
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Click Sign Up.

- Enter a valid Email Address.
- Check the box indicating agreement with the Terms of Service and Privacy Policy.
- Click the Send Verification Code button. An email with a 6-digit verification code will be sent to the email address entered.

- Enter the 6-digit Verification Code.
- Click the Verify and Sign Up button.

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The user's settings, groups, and buttons (including their click history) will be instantly backed up to the cloud.
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As the user works in WhenDid.io, information is constantly backed up in the cloud.