About this app
Personalized Badminton Training - Get instant feedback on your serves Features: - The first iOS application for badminton serve training - Free to the public, ensuring accessibility for all badminton enthusiasts Developed by: CHAN Cho Yi (2023-2022) All under supervision of Dr.YUEN Shiu Yin Kelvin
Audience growth
Ratings growth
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
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 20, 2026 · 3:09 AM Free
Screenshots
