Hallo German

Overview

A launched native Android German learning app built around daily vocabulary, sentence practice, and review flows.

Product purpose

Help learners turn German study into a repeatable routine by combining curated content, study status, review history, and multiple practice modes.

Target user

Self-directed German learners who want practical A1-style vocabulary and sentence practice with Korean and English support.

Role and ownership

Product planning, UI implementation, architecture decisions, and app delivery.

Main features

• - Level and topic based word and sentence lists
• - Flashcard, listen, read, write, and speaking practice screens
• - Notebook and word detail flows
• - Learning history and study status tracking
• - OCR result flow for captured text

Technical notes

• - Native Android app using Kotlin and Jetpack Compose
• - Hilt-based dependency injection with domain/data modules
• - Room and DataStore used for local learning state and settings
• - ML Kit text recognition, translation, and digital ink dependencies prepared

Future improvements

• - Expanded study analytics
• - Additional lesson packs
• - Deeper review insights and adaptive recommendations