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◆ knock knock is “the Appointment app”
Easy to make an appointment with me and my friends
This will make appointment with your buddy easier  
Knock knock is linking me and my friends in entirely new ways.
Do not worry about that “Will that work for everyone?” or “how many are coming?”
Knock knock make an appointment easier .
◆ Let’s begin “Knock Knock” with an easy and comfortable
First, invite the members who you want to meet. You can send invitation in various ways with SMS, kakao talk, Line and more..

Second, Choose “appointment Theme” then send “Knock” to members, That’s all!

◆Too easy and powerful function! “Try Knock Knock”
- knock : You don’t need to ask friend if they are free one by one.
When you Knock after select the members you want to meet, then Knock will be automatically transmitted.
- Personality Design card: decorate the cover with your own unique card design.

- Do not knock” when you busy at the moment : Friday! gets a lot of knocks~
 If you don't want to be interrupted, Simply set to “DO NOT KNOCK.”

- Information gathering ? : You can see various information at a glance that attendance, feedback and photos. Share a fun story in real time with members are invited.

Please send bugs or improvements and comments to .