If you are playing on Mobile and you login with your Kongregate Account, you can earn yourself a +5% Angel Effectiveness Boost, as long as you remain logged into your account.
If you login correctly, it will display a "Signed into Kongregate, and getting a +5% Bonus per Angel" notification under the "Investors" tab on the Menu.
If you're having trouble, try logging out of your Kongregate account and back in again. Sometimes you'll need to re-connect to our servers.
Hit us up at firstname.lastname@example.org for any other questions.