Do you remember the poke we used to do with Facebook in the past?
For those of you who miss this feature, a light, simple, and specialized application was born.

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Knock it!
○ Friend list management through friend add function
○ Poke a friend (send push notifications)
○ Send a letter to a friend (sending a push notification letter including title and content)
○ Cock-Moa (Collecting received cock-pokes and cock letters)
○ Suggestion to the developer (Suggest more interesting features!)
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22.03.17 First Released
Developer Glacier Han.

Thank you for using it.
Please send ideas or inquiries to [email protected] :)