Your progress
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Your ticks, finished lessons and notes are saved in this browser. Sign in to keep them on every device. When you sign in, what you did here is added to your account. What the site keeps.
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Signed in as . Your progress is saved to your account and follows you to any device where you sign in.
Back up or move your progress
Download a copy of your progress, or load one. A progress.json from the old local version of the course works too.
Delete your account
Removes your account and everything saved with it from this site. Your progress stays in this browser. See Privacy for what the site keeps.