So I built Emberkin.
It is a Serverless, P2P monitoring tool.
No Cloud Database: The parent's device is the only storage.
No Middleman: Data travels directly from Child to Parent via an encrypted tunnel.
My servers see nothing: I only facilitate the handshake.
The Problem (Why I'm posting): I just finished the mandatory "20 testers for 14 days" on Google Play. Google rejected my production access. Their reason? "Insufficient user engagement." Apparently, a privacy app that runs silently in the background doesn't trigger their "engagement metrics" enough. They want me to restart the 14-day sentence.
I need to prove to Google that real humans are using this, not bots.
The Tech Stack (For the curious):
Architecture: Native Android (Kotlin + Jetpack Compose).
Connectivity: WebRTC Data Channels over NSD (local) and TURN (remote).
Crypto: Custom AES-256-GCM implementation.
Permissions: Accessibility Services (strictly for on-device analysis, no data leaves the tunnel).
The Ask: I’m looking for tech-savvy parents or developers to install the beta and actually use it.
- Pair two devices .
- Send some data through the P2P tunnel.
- Help me generate enough "engagement events" to get this approved.
If you believe children's data belongs in the family, not on a corporate server, please help me out.
Beta Link & Architecture breakdown: https://www.emberkin.app/en/architecture
I’ll be in the comments answering questions about the nightmare of NAT traversal and Android permissions.