About this app
This simulation allows users to test various light sources in a dark cave. This resource is aligned with the Smithsonian Science for the Classroom grade 1 physical science module, "How Can We Light Our Way in the Dark?"
Latest release
What’s New
Minor text tweaks
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 25, 2026 · 9:04 PM Free
Screenshots
