About this app
Helpful in setting up a connecting belt and two pulley system. With just a few inputs (pulley diameters, driver rpm, power, centers distance, belt size), the App shows how they effect belt velocity, tension, torques, wrap angle, and the RPM of the driven pulley. Inputs can be in imperial or metric units of measure. Results can be shared by text or email.
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 16, 2026 · 12:40 AM $0.99
Screenshots
