Create Mate Account to synchronize the translation history and Phrasebook across all devices. Or, simply have it safely backed up. Infromation about your purchases will be also kept in your account.
Come up with a password which is at least 8 characters long.
Sign-up code is missing in the URL. Probably you've clicked the wrong link (the correct one is in the email you got from us after checkout). Anyway, you can also create Mate Account directly in one of the apps. We'll keep information about your purchase anyway.