Vieup app for iPhone and iPad
This is A Spaced Repetition app, that you can use to:
1. Learn a new language from scratch
2. Understand the terminology and knowledge of a certain field
3. Review the knowledge expected to be retained
The system has the following features:
1. Review previous knowledge through spaced repetition
2. When a certain number of repetitions is accumulated, it will automatically switch to practice mode.