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111 articles, page 1/19

Build a sleep-tracking smart alarm that uses accelerometer data to detect light sleep phases and wake you at the optimal moment. This tutorial covers sensor data acquisition, signal processing, sleep stage estimation, and alarm scheduling in React Native.

Learn how to build a mood tracking application that balances technical performance with emotional sensitivity. This tutorial covers accessibility-first design, optimistic UI updates, progressive data loading, and strategies for creating an interface that supports rather than overwhelms users.

A step-by-step guide to creating an open source anxiety tracking application with React Native, TypeScript, and a privacy-first architecture. Covers mood logging, trigger identification, pattern analysis, and exporting data for therapy sessions.

Learn how to build a fully offline-capable sleep tracking application using React Native and WatermelonDB. This comprehensive tutorial covers local-first data architecture, background task scheduling, and bidirectional sync strategies for health data.

Chronic illness tracking apps empower patients to monitor symptoms, medications, and lifestyle factors between clinic visits. This guide covers the architecture, key features, security requirements, and development best practices for building effective health tracking applications.

Design efficient data structures and state management for a Cognitive Behavioral Therapy app using React. This tutorial covers journaling models, thought records, mood tracking, and state patterns for offline-first CBT applications.