Unfortunately, no. Sales through the mobile app are not commissionable. Currently, we can't track affiliate commissions for purchases that happen through the Udemy Mobile App, nor do we manage those payments since they are all processed and handled by Apple/Google.
We do, however, attribute affiliates for sales that happen on the mobile version of our site. If a user clicks your affiliate link using a mobile browser and purchases a course within the cookie window for that course, you'll earn a commission.