Full access is required by Apple in order to be able to copy and paste emoji. 

Don’t worry, we don't collect any personal information.
we don't capture any keystrokes input through our keyboard app.
We don't store any numeric entries such as credit card numbers or any entries in secure text fields.
We don't use any contact names, the first and last names of the contacts in your phone contact list.
This data is never sent to our servers.

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