SunChineseApp
A comprehensive ecosystem for intermediate Chinese learners.
An all-in-one mobile application designed to help intermediate learners break through the plateau with AI-driven shadowing and multimedia content.

Project Information
Client
EdTech Startup
Year
2025
Role
Full Stack Development
Scope
- Mobile App Development
- AI Integration
- UX Design
Overview
Created a "Super App" for Chinese language learning, focusing on intermediate learners who need deep practice in listening and speaking.
The Challenge
Existing apps focus on beginners or are too fragmented (separate apps for dictionary, flashcards, media). Intermediate learners lacked feedback on their speaking and a unified learning environment.
The Solution
Developed a cross-platform app using React Native and Expo. Integrated a bilingual reading system with one-touch dictionary lookups. Implemented an AI Shadowing feature using Speech-to-Text to analyze and grade user pronunciation against native speakers.
Technology Stack
Mobile
- React Native
- Expo
Backend
- Directus
- PostgreSQL
AI
- NodeJS
- Google Speech-to-Text API
Key Impact
Achieved complete MVP in 4 months. System stable with 10k+ concurrent users. 45% increase in onsite time due to integrated multimedia features.

Intro

Intro

Dashboard

Talkings

Books

Practice

Shadowing

"The team realized my vision of a learning ecosystem. Not just coding, they consulted on UX flow for the Shadowing feature, skyrocketing lesson completion rates."
