Both services have something to offer for seasoned deal hunters, but Apple Music's promotions generally let you get more for free (assuming you don't just stick to Spotify's ad-supported tier).
Verizon announced back in August a great Apple Music promotion that offered its customers six months of free music. The only condition was that you had to be a Verizon Unlimited customer.
Apple will this year again run its ‘12 Days of Christmas’ promotion after releasing the companion iOS app a few days ago. The promotion will run between December 26 and January 6, with each day ...