Saved on this device
Settings & accessibility
Change these any time. They change how things are shown, never what counts as learned.
Text size
Motion
Captions & transcripts
Videos are in production; when they're released, captions will come from the same script.
Preferred way to start
A starting point, not a label about you. Switch freely inside any lesson.
Pace and detail
Changes explanation length only. Safety notes and checks are always the same.
Measurements
Read aloud
Inside lessons, a “Read aloud” button reads the authored text using your device's built-in voice — only when you press it. Your browser doesn't offer a device voice, so text stays on screen.
No microphone, voice recording, or live AI is used.
Device data
Progress, saved lessons and these settings live in this browser only.