No. Just install the app and you're good to go. We ask for your email address when you start so we can keep you up to date with new widgets and other announcements, but you don't need to provide it if you don't want to. We do track your device ID which is anonymous but unique - this helps us understand how many individual devices are using the service, as well as how they're using the service - this helps us make Coinlytics better over time. It also helps us uniquely identify devices for alerting purposes, but we have no way of associating that ID with you personally so you are completely anonymous to us.