About this app
The Gorilla Foundation is best known for conducting the longest interspecies communication study in history (almost 5 decades) and the only one involving gorillas: Project Koko.
Latest release
What’s New
* Subscribe now to get monthly insights about Koko, gorilla life, conservation, and sign language directly from Dr. Penny Patterson and The Gorilla Foundation team * Share Signs: Spread the joy of learning! Now, you can easily share your favorite sign videos with family and friends through messages or social media
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 15, 2026 · 4:34 PM Free
Screenshots
