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https://play.google.com/store/apps/details?id=com.slide2talk.android.ap…
• Supports any type of local area networks: WiFi, WiFi-Direct (P2P), WiFi hotspot (access point), Ethernet, Bluetooth / USB tethering, etc. Can work in them at the same time.
• Real-time audio transmission. You are just starting to speak, and you are already being listened to!
• End-to-end encryption. All transmitted data are encrypted – don't worry about confidentiality!
• Communication in closed groups. You can send messages to all users of the group at once or personally.
• Simple interface. Everything important on one screen! You can change the color. Light / dark theme switching is supported.
• The "Slide To Talk" button protects against accidental audio sending.
• You can configure a list of "home" WiFi networks. The app will automatically apply custom settings when you are on such networks. This will allow, for example, to play incoming messages loudly only when you are actually at home.
• Headphone and headset support. If a wired or Bluetooth headset is connected, it is used automatically.
• Message history. You can re-listen to any voice messages!
• Quick reply screen. It is shown automatically to any incoming message. You can reply instantly!