Abstract— A common problem that is often faced by almost
most Barbershop is in terms of serving customer queues, for
barbershops who have many customers and have many service
chairs, then of course a good customer queue service management
concept is needed as well. One of the concepts of queuing services
for customers is how queue information can reach customers
without queuing at the location. For this reason, a queue service
concept for customers is needed based on Android. Android is
preferred because almost all smartphone users are currently based
on Android. The application will be built based on the concept of
client server so that the queue service will occur in real time. The
Queuing model used is Multi Channel Single Phase, because in the
queue at barbershop there will only be one stage of the process,
but it requires a lot of queue flow. This can be seen in the structure
of the development diagram. By using an Android-based
application based on a single phase multi channel model that will
be built it is ensured that customers will find it helpful, without
having to spend time in a queue customers can order queues and
see queues in real time so they can rush to barbershop when it is
close to the queue