About this app
百乐汇（Sounds Fun）一款集结吉的堡美语系列所有书籍的CD音档及律动歌曲动画的一款APP。让学童透过移动端的下载使用。能够达到随时学、随地学的情境。让听说美语更方便，学习成效更显著。
Latest release
What’s New
Version 3.3.2
Mar 10, 2023
bug-fixs
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 21, 2026 · 12:21 PM Free
Screenshots
