About this app
Jellywatch is a database for monitoring ocean conditions, especially jellyfish populations. Citizen scientists are encouraged to submit reports from around the world. The data will be freely available to download or browse. Report jellyfish blooms, red tides, and even clean “normal” conditions you observe. If you submit a photo, we can identify the species for you as well.
Latest release
What’s New
-Bug fixes.
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 16, 2026 · 10:55 AM Free