synheart_behavior 0.1.0

A lightweight, privacy-preserving mobile SDK that collects digital behavioral signals from smartphones.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.0.1 - 2025-12-26

Added

• Initial release of Synheart Behavioral SDK for Flutter
• Core SDK classes: SynheartBehavior, BehaviorConfig, BehaviorEvent, BehaviorSession, BehaviorStats
• Streaming API for real-time behavioral events
• Session tracking with summaries
• Manual stats polling
• Platform channel interfaces for iOS and Android
• Example Flutter app demonstrating SDK usage
• Comprehensive documentation and README

Features

• Input interaction signals (tap, scroll, swipe gestures)
• Attention & multitasking signals (app switching, idle gaps, session stability)
• Privacy-preserving design (no text, content, or PII collected)
• Lightweight implementation (<150 KB compiled)
• Low resource usage (<2% CPU, <500 KB memory)
• Optional notification and call tracking (requires permissions)

Platform Support

• iOS 12.0+
• Android API 21+ (Android 5.0+)
• Flutter 3.10.0+

0.1.0 - 2025-12-29

Added

• Motion state inference with ML model (LAYING, MOVING, SITTING, STANDING)
• Typing session tracking and comprehensive typing metrics
• Emotion metrics integration
• Motion feature extractor for device motion signals
• Enhanced behavior session with expanded metrics
• ONNX model support for motion state prediction
• Label mapping for motion state classification

Features

• Real-time motion state prediction using on-device ML inference
• Typing activity ratio, cadence, and burstiness metrics
• Deep focus block detection
• Enhanced behavioral metrics (focus hint, distraction score)
• Improved session summaries with motion state information