First Android release. Snap a rock, run a kid-safe test, hear its story and stamp it into your Field Guide. 32 rocks and minerals, in English and Simplified Chinese. Everything stays on your phone.
Only the current version so far — new entries appear as the app ships updates.
StoneTell: Rock ID for Kids is an education app by Poetical Engine LLC with 0+ downloads. Released Oct 17, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Snap a rock, run a kid-safe test, hear its story, file it in your Field Guide.”
