DS
Engineering Case Study•Kotlin & Jetpack Compose (Material 3)

Lumetrix

Native Kotlin Android Digital Wellbeing & State Analytics

Android digital wellbeing and state management app — a native Kotlin successor to Digital Wellbeing, built with Room database. Currently in active development.

Language01
100% Native Kotlin
UI Framework02
Jetpack Compose
Database03
Room DB
Lumetrix
KotlinJetpack ComposeRoom DBHilt DI
Core Motivation

Why It Was Built & The Engineered Solution

The Challenge

Stock operating system digital wellbeing tools are passive, offering basic graphs without deep focus controls, disturbance analytics, or local data encryption.

The Solution

Lumetrix is an advanced Android platform engineered in Kotlin using Jetpack Compose, Material 3, Clean Architecture (MVVM), and Room DB for actionable focus scoring and app blocking.

Core Technical Capabilities

✓
Android UsageStatsManager API integration for high-precision usage tracking
✓
Focus Mode with system-level app blocking and notification silencing
✓
Productivity & Focus Scoring engine (0-100 gauge)
✓
GZIP compressed & AES-256 encrypted Google Drive backup
✓
Foreground Service for real-time app state monitoring
Architectural Blueprint

Functional Modules Breakdown (6 Modules)

Comprehensive module-by-module analysis of features, business logic, and implementation details.

01
Module 01Production Ready

Usage Stats & Screen Time

High-Precision Device Analytics

  • Direct integration with Android UsageStatsManager API
  • Real-time tracking of app launch frequency and session duration
  • Hourly, daily, and weekly usage breakdown charts
02
Module 02Production Ready

Focus Mode & System App Blocker

Deep Work & Distraction Prevention

  • Custom scheduled focus sessions with strict mode enforcement
  • System-level app blocking overlays during focus periods
  • Automatic notification suppression and DND toggle
03
Module 03Production Ready

Notification Analytics

Disturbance & Noise Severity Monitoring

  • Per-app notification volume tracking and frequency graphs
  • Disturbance severity scoring based on ping intervals
  • Notification batching analysis to reduce context switching
04
Module 04Production Ready

Productivity Scoring Engine

Algorithmic Productivity Rating

  • Dynamic 0-100 productivity score calculation
  • Categorization of apps into Essential, Neutral, and Distracting
  • Weekly behavioral trend reports with actionable recommendations
05
Module 05Production Ready

Encrypted Backup & Drive Sync

Secure Data Sovereignty

  • Local JSON export compressed with GZIP
  • AES-256 cryptographic encryption for all sensitive backups
  • Google Drive API integration for cloud synchronization
06
Module 06Production Ready

Foreground Monitoring & WorkManager

Persistent Real-Time System Tracker

  • Android Foreground Service for real-time app state monitoring
  • WorkManager periodic tasks for efficient background analytics
  • Optimized battery consumption with low-overhead Kotlin Flows
Stack & Specifications

Technical Architecture & Security Model

Framework
Kotlin & Jetpack Compose (Material 3)
Database Layer
Room Database (SQLite Abstraction)
State Engine
MVVM with Kotlin Coroutines & Flow
Security Spec
AES-256 Encryption & Encrypted SharedPreferences

Architectural Patterns Executed

Clean Architecture (MVVM)Hilt Dependency InjectionForeground Service & WorkManager

Tech Stack Summary

KotlinJetpack ComposeRoom DBHilt DIWorkManager
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