A comprehensive personal finance management solution for both iOS and Android. Performance is optimized for seamless expense tracking, integrating artificial intelligence to automate receipt scanning and voice processing. The application features a modern interface with Dark Mode support, ensuring a flawless experience whether offline or syncing online. The system also fully integrates English-Vietnamese bilingual capabilities alongside flexible premium subscription tiers.

Omni Study is a comprehensive study management solution designed to optimize personal productivity through schedule orchestration (Timeline), deadline management, and an intelligent note-taking system. The core technical highlight is its native, multi-size Widget system, which enables real-time status updates and data synchronization via background processes, ensuring a continuous and seamless flow of information across all device platforms.

Khiem's System is my personal web platform built as a high-performance portfolio and mini product hub. It combines multilingual content, interactive showcase modules, and a secure admin workspace for managing users and communication data. The architecture emphasizes maintainability with standalone Angular components, modern animation flows, and a deploy-ready structure.