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The games

Five places. One island. All at their level.

Each game is a place on Rex's island, and every one of them learns what your kid knows and plays at their level. Rex says every instruction out loud, so kids who can't read yet play on their own.

Story Treehouse

Silly Story Builder

Free

Reading and new words

Your kid taps four picture cards and Rex reads back a story built from their picks, each word lighting up as he says it. It goes on their Shelf to hear again.

Try the early web version

Kitchen

Spelling Kitchen

Free

Sounds and spelling

Chef Rex needs an ingredient spelled. Each letter says its sound as it lands, and a finished word cooks into a cupcake. Words grow from three letters to six as your kid does.

Try the early web version

Picnic

Feeding Time

Free

Counting and early math

Rex is hungry for exactly three apples. Count them into his bowl, skip the foods he doesn't want, and share with a bunny. Counting to 10, more and less, and sharing.

Try the early web version

Letter Road

LetterMobile

Unlimited

Letters and handwriting

Trace letters with a finger or Apple Pencil to fuel Rex's car. Every letter lands in an alphabet book drawn in your kid's own strokes.

Try the early web version

Launch Pad

Space Adventure

Unlimited

Science and curiosity

Fly Rex's rocket planet to planet around the space rocks. At each stop he shares three true, surprising facts and asks one picture question.

Try the early web version

More on the way

New games join the island as they're ready, and Unlimited families get every one. Each plugs into the same skill map, so a new game already knows where your kid is.

Your host

Meet Rex.

Rex is a big-hearted green dinosaur who reads every story, cooks every word and counts every apple out loud. He never says “wrong”. A miss gets a soft “bwomp” and another go, and he's never sad.

  • Hello!Rex: Hello!
  • Pick an animal!Rex: Pick an animal!
  • Hmm...Rex: Hmm...
  • You did it!Rex: You did it!
  • Goodnight!Rex: Goodnight!

Play now, free

The early web versions

These are the first versions we built, and they're free in your browser until the app launches. They don't adapt to your kid yet and nothing is saved. No ads, no chat, no microphone.

Get the real thing first.

ooli is coming to iPad and iPhone. We're letting a small group of families try it first, a few at a time.