TutChat

TutChat is an offline messenger that works without internet access.
The app connects nearby devices using Bluetooth and lets you chat where mobile networks or Wi-Fi are unavailable.
TutChat is perfect for:
flights and airplanes
airports and travel
concerts and festivals
places with poor or no signal
Features:
no registration or accounts
no phone number required
no internet connection needed
nearby device discovery
text messaging
voice messages
Install TutChat on two devices, open the app, and start chatting instantly.
TutChat respects your privacy and does not collect personal data.