You have multiple ways of preventing users from entering their email more than once.
We offer a feature on all our plans that prevent your Widget from collecting the same email more than once. Here's where you can find it:
Another handy option to do this is to only show this specific Widget once per visitor session, or once per visitor (lifetime). Here where you can set this up:
This feature leverages a Tada cookie that is set to prevent users from playing the same game more than once. If users clear their cookies, Tada won’t be able to prevent multiple plays per user. However, the percentage of users that know how to do this and that is willing to do this is extremely small.
If you have any other questions, you may submit a ticket here and we will get back to you as soon as we can.
Is there a chance for customers to play the same game?
Why do customers play the same game/receive the same codes?