The problem NetworkDexter - X solves

NetworkDexter -X is an android app built with a motive to connect everyone despite of Internet or Network. NetworkDexter leverages every feature of your phone including Wi-Fi/BLE/HotSpot and as well as use the power of Audio using Ultrasonic waves to connect phones in vicinity.
Let's see where NetworkDexter - X can be helpful :

• Situation 1 : A user is stuck in an calamity/disaster situation and there is no internet/network, no SOS service works without network.
• Situation 2 : As we all know there are multiple apps for Women Safety on Google Play Store but none of them works when there is not internet connectibity or no NETWORK at all.
  Now to counter all these situations our app comes into play, it makes use certain features implemented using Google's Nearby API and AudioChirp Technology to connect people using Ultrasonic waves and transfer data. Let's have a look into these features.

Feature 1 || Send Quick emergency text: This feature provides users SOS services in network as well as no network conditions. The user is given an option to choose his emergency. Now if the device has access to mobile network it sends the users coordinates to the respective official.
Feature 2 || Walkie Talkie feature: Our app connects to nearby devices in a fully-offline peer-to-peer manner. Connections between devices are high-bandwidth, low-latency, and fully encrypted to enable fast, secure data transfers. A primary goal of this module is to provide a platform that is simple, reliable, and performant. We leverage this feature on top of BLE/WIFI switching capability.
Feature 3 || Public Emergency feature: The idea here is to provide a service which can use widespread public networks to help people in emergency situtions. For this specific feature we've written a backend server on Laravel for reciving/broadcasting public emergency help messages.

TO READ MORE PLEASE REFER TO OUR GITHUB REPO. (One more demo video is included in the Drive folder showing live demonstration.

Challenges we ran into

Implemention and Combining all these features into one APP was difficult. GoogleNearby API implementation with AudioQR took time but we got around. Chirp technology was hard to implement because of older documentation.