Inside Out Explorer

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What does it do?

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Learn the bones

1. Tap Start camera and hold your hand in view, fingers spread.
2. Wiggle your fingers and watch the bones move with you!
3. Tap a label to learn about that bone.
4. Try two hands at once. 🙌
5. Press Bone Hunt to play: find 5 bones by wiggling them and earn stars! ⭐
6. Pet mode: tap 🐾 Pet, then point the camera at a dog or cat from the side, with the whole pet in view. A skeleton drawing is fitted around your pet. If it faces the wrong way, tap Flip pet.
7. In Pet mode, tap a label or a bone to learn about it. Bone Hunt asks you to tap the right part, like the tail bones!
8. Switch between Little Kids (simple names) and Big Kids (science names) at the top.

For fun and learning. Not a medical tool. Positions are approximate. The bones are a drawing placed on your hand or pet, not a picture of real bones.

🔒 Privacy

Camera video is processed only on this device. It is never saved, recorded, or sent anywhere, and nothing about you is collected. Read the privacy notice

🙏 Credits

MediaPipe (c) Google LLC, Apache-2.0. Hand tracking uses the MediaPipe Hand Landmarker, the forearm follows your arm using the MediaPipe Pose Landmarker (lite), and the pet finder uses the MediaPipe Object Detector (license, notice).

EfficientDet-Lite0 model trained on the COCO dataset (annotations CC BY 4.0).

This app is not made or endorsed by Google. Bone drawings are original art made for this app. In Pet mode, the pet finder only finds a box around the pet, so the skeleton is a drawing fitted into that box and positions are approximate.

For grown-ups: MediaPipe project website ↗