JavaScript is off. Every lesson still reads in full, with all four levels shown one after another. The 3D arm, the record filter, instant answer checks, saved progress, the theme and motion controls, and Ask the xArm need it, so the site works best with JavaScript on.

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Your progress, kept on this device only.

The dashboard needs JavaScript. Every course is open without it:

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This site keeps what the courses need to work in this browser: the tier you chose, the questions you answered correctly, whether you have visited before, and your filter and display settings. It stays on this device, and nothing you choose here changes it.

This site uses no third-party analytics. No analytics script, tracking pixel or tracker from another company loads by itself on any page, so there is nothing here to allow or refuse. A lesson video loads from YouTube only when you press Play, as its note says. If analytics is ever added, it will be named here, and it will load only after you allow it.

What each one records

Who	What	When
This site	The tier you chose, the questions you answered correctly, whether you have visited before, your filter and display settings	Always, in this browser only

You can change this at any time from “Analytics choices” at the foot of every page.

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xArm 6

xArm 850