About this app
From fountain pens, mops, batteries, paints, furnaces, rotary engines to anything you can imagine inventors of color have used brain power to create it all. Their variety of inventions are extraordinary. Black History Inventors app includes many amazing men and women. Some of these folks exhibited enough creative genius to receive U.S. patents. You can listen to historical inventor stories through your speaker or headphones spoken by a real person. Scan through all of the inventors to learn more about their contributions to modern living.
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 8, 2026 · 11:10 PM Free
Screenshots
