The Challenge
MedCore developed a groundbreaking heart-rate wearable, but their existing app was unreliable. It crashed when users lost internet connection and failed to sync data when the app ran in the background.
They needed a robust, medical-grade mobile solution that could handle millions of data points per day while preserving battery life.
System Architecture
Built on the Flutter ecosystem.
Offline-First Core
We implemented a local SQLite database with WatermelonDB. The app functions 100% offline, caching vital signs locally and performing an intelligent batch sync to the cloud only when connectivity is strong.
BLE Bridge
Using custom native channels (Swift for iOS, Kotlin for Android), we engineered a background service that keeps the Bluetooth Low Energy (BLE) connection alive even when the phone is locked, ensuring zero data loss.
GPU Visualization
Doctors need precision. We utilized Skia graphics engine to render high-frequency ECG charts directly on the device GPU, allowing users to zoom and pan through weeks of data instantly.
Mission Outcomes
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