StoneTell FIELD NOTES · NO. 0 Join the waitlist

Geology, disguised as play · ages 8–12

Snap a rock. Hear its 300-million-year story.

StoneTell names the rocks your kid keeps pocketing — then lets the rock tell its own story. Screen time that comes back as a geology lesson they actually asked for.

Get the TestFlight invite See how it works

iOS PILOT · PARENTS SIGN UP, KIDS EXPLORE

DEEP TIME, PLAIN WORDS

One photo, a whole story to tell

Identification is just the first page. Each rock narrates where it was born, what it survived, and why it ended up under your kid’s shoe.

Obsidian specimen Very likely

Obsidian

“I was a river of fire once — cooled so fast I never had time to grow crystals.”

  • BEDTIME The 2-minute telling, read-aloud friendly
  • CURIOUS Volcanoes, glass, and why edges get sharp
  • DEEP DIG The version they bring to the science fair
Arrowheads for 10,000 years Sharper than surgical steel
No. ST-00041NARRATED BY CHIP

Stories are layered by age — an 8-year-old and a 12-year-old get the same rock, different depth.

Written for kids, checked by humans. No encyclopedic walls of text, no dumbed-down cartoons.

And when StoneTell isn’t sure, it says so — then turns the doubt into the next experiment.

FIELD PROCEDURE

How a walk becomes a collection

  1. 01

    Snap it

    One photo of any rock — the app even asks for a coin next to it, like real field notes.

  2. 02

    Meet the suspects

    StoneTell names its best candidates — and says honestly how sure it is. Never a fake “99.9%”.

  3. 03

    Run the test

    Close call? Kid-safe field experiments — a coin scratch, a streak rub, a fridge magnet — settle it.

  4. 04

    Stamp the journal

    The rock tells its story, the card gets numbered and filed. A collection that grows every weekend.

INSIDE THE APP

Built like a field journal, played like a game

  • Specimen cards — punch hole, number, date. Serious records for serious little collectors.
  • Honest confidence — “Very likely”, “Possible”, “Not sure yet”. Doubt is a feature, not a bug.
  • Rock Detective — when candidates are close, experiments decide. Science method by stealth.
  • Chip the guide — a quartz-crystal companion who asks questions instead of showing off.

FOR THE ADULT IN THE ROOM

Built for parents who read the fine print

Photos used once, then gone

Rock photos go to identification and are deleted right after. No photo archive, no location tags, nothing to leak.

No ads. No feed. No strangers.

A single-player field journal — not a social network, not a casino. Nothing is engineered to keep your kid scrolling.

Honest by design

StoneTell says “probably” and “not sure” out loud — then turns uncertainty into the detective game. That’s the whole point.

Parent-gated, kid-safe

Designed with COPPA in mind: we only ever email you. Kids never type an address, a name, or a location into the app.

NO ADS · NO KID ACCOUNTS · NO LOCATION TRACKING · THE PILOT IS FREE FOR WAITLIST FAMILIES

EXPEDITION ROSTER

Join the first field season

We’re letting families in through TestFlight, in small batches. Parents sign up — kids get the good part.

One email when your invite is ready. Unsubscribe anytime — it’s just a list, not a funnel.