Comment by bfirsh

If you want to see if they have any of your data, check: https://kite.com/settings/files

I have zero faith this page actually works though. A few months ago I deleted all of my data and I checked back today and it has reappeared. (I uninstalled the client and deleted my login token back then too, so as far as I can see it's their issue.)

I have sent them a stern email to delete my data. If you want your data deleted too, I would recommend doing the same rather than trusting their web interface. None of the emails on their website seem to work, though. Emailing the CEO does work eventually, but I don't want to start a witch hunt. My email is in my profile if you want his email.