About this app
Amperry is the instant daily power bank rental service that helps you stay connected and continue doing what you love with your smartphone. Register to start using the service
Latest release
What’s New
A fresh new look across the entire app, plus stability and performance improvements.
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 Aug 21, 2026 · 4:49 AM Free