集團通知是完全自由的信息實時通知應用程序。
Group Notification is a state of art android mobile application which can also be the best alternative to "Paid Group Messaging System" because it's totally free and works as efficiently.Through this app, any party can create a group; any user, then can join them and get the notification message from the subscribed OPEN/CLOSE group in real time from any corner of the world.