In And Out play online

In And Out is a counter app that shares the count with other devices listening in on the same name.

Simply set the name upon launch, and increment/decrement the counter; other devices in the same name will receive those counts, and be able to also increment or decrement the count, sharing those updates with you.

Ideal for helping monitor and control the population density at your store, special event, or anything you can think of that can be counted.