Hello @Anonymous
the smart pen function is only temporary not available on an iOs device when using Mobile App. Background information are described here: "AutoCAD mobile app updates". Unfortunately I do not have any influence on the timing of feedback.
Regarding your question - on an Android device the function is available. I just ran the same function here on my Android device:
The quick toolbar including the Smart Pen is directly available when you open a drawing and it works as expected: It creates an arc when I want to draw one.
Hope this helps.
@Anonymous Could the information provided help you and answer your question?
If yes, please click on the "Accept as Solution" button as then also other community users can easily find and benefit from the information. If not please dont hesitate to give an update here in your topic so all members know what´s the progression on your question is and can suggest next steps that might be helpful for you to achieve what you´re looking for.
Best regards,
Thomas
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Thomas Stühle
Technical Support Specialist