This app does not necessary for wi-fi or radio network. Can be easily detecting users and connect by nearby users. Can use to setting to that. Alert, notification, or notification previews. iOS version of the BLEMessenger are now on sale. You will be able to send messages iOS to MacOS or MacOS to iOS, anything MacOS to MacOS. Even if a wrong message is sent to the partner, it's OK! It can be eliminated from an option. Conversation can be easily resumed, You can reconnect to users. When app is background, notification to your device. Let's you start to the conversation with simple app!!