Bluenote - Sell Project
Listed August 24, 2026
About Bluenote
Offline Bluetooth chat app for Android — message nearby devices, zero internet.
Bluenote is an Android app that lets two nearby devices chat in real time over Bluetooth completely offline, It was built for the soul purpose of descrete offline communication between members in close proximity, and it can also be used in movies as a royalty free social media app for scenes that happen in remote areas or offf-grid locations. The core challenge was building reliable BLE peer-to-peer messaging: , The app also handles common Android BLE pain points like minSdk configuration and cross-device compatibility, and ships with a working, tested chat flow between two physical devices. Tech stack: Flutter/Dart, Kotlin, and many flutter plugins Ideal for a buyer looking to extend this into a full offline messaging product, some use cases include festivals/events, remote areas with no connectivity, disaster/emergency communication, or privacy-focused local chat. Included in the sale: full source code, documentation of the BLE architecture, and a working demo APK.
Project details
Next step: <p>the buyer can scale this project by switching to radio waves for offline transmission instead of Bluetooth so as to gain a broad reach of connectivity.</p>
For sale
Asking price: $3,000 USD
What's included
Source code, All related design work
Full documentation of the BLE architecture and a working demo APK for testing.
Reason for selling
i need financial assistance to sponsor my software development career.
Project metrics
Average Monthly Revenue: Pre-revenue