- Version: 1.0
- Size: 7.55 MB
- Release date: 2026-06-18
- Min iOS: 18.0
- Bundle ID: com.yichen.preschool
- Version: 2.0.0
- Size: 12.63 MB
- Release date: 2026-01-07
- Min iOS: 15.6
- Bundle ID: com.yien.seyuanji
- Version: 1.1
- Size: 9.99 MB
- Release date: 2025-11-03
- Min iOS: 17.6
- Bundle ID: com.yien.child.habit