There's nothing like decking the halls with horrifying decor and upgrading your iPhone's home screen ahead of the most haunting holiday of them all! Complete with nods to seasonal motifs, these Halloween aesthetic ideas will leave you with all the spooky and/or cozy inspiration you desire to give your iPhone the seasonal update it needs. Check out the best Halloween-themed wallpaper and app icon inspiration ahead (here's how to customize your app images), and keep reading to see the best images that'll give your phone the Halloween aesthetic you've been looking for this season. Happy hauntings!