IchLerneDeutsch Pro – learning German on the iPhone
Vocabulary and verb trainer with levels, audio and learning progress via iCloud.
- Client: Own project
- Service: Software development
- Technology: Swift, SwiftUI, iCloud, AVFoundation
Starting point
German learners need daily practice with pronunciation, repetition and visible progress – ideally without an internet connection.
Solution
The app offers a vocabulary trainer by level, flashcards, listening and speaking exercises and modal verb drills. Progress is saved and synced between devices.
- Vocabulary by level with repetition
- Audio player for pronunciation, also on the lock screen
- Exercises on modal verbs and sentence structure
- Progress via iCloud
Implementation
In February 2026 the code was systematically reviewed for crashes, memory leaks, energy use and performance. The issues were documented and fixed step by step (including the audio player, timers and data storage).
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