K is the simplest way to check in or make decisions with a group.
Super quick.
No typing. No thumb gymnastics. Just K.
Make group decisions
Create a Group with a question for the title, like "Dinner 2nite?", and invite the folks you want. When everyone Ks the answer is yes.
Call a quick meeting
Make a Group with a title like, "Lets Meet" and add the people you want to meet with. When everyone Ks, meet at your predetermined place.
Check in on whatever
K will adapt to whatever you want to use it for -- it will become your own language, but way faster.
"Are we ready to release?" "K"
"Sign the contract?" "K"
"Meet up at the usual spot?" "K"