About this app
Quiz: How much would it be if 1 million yen was operated for 3 years at 5%per year? Correct answer: 1.16 million yen, not 1.15 million yen. It is difficult to calculate compound interest with the human brain, but this app can calculate immediately. It works quickly on one screen, so it is easy to use.
Latest release
What’s New
We have enhanced functionality and fixed bugs to make it even more comfortable to use.
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 12, 2026 · 4:08 AM Free
Screenshots
