PupBox caters specifically to puppies and is unique in two ways. First, the contents of the box are customized to match your changing pup’s development. Second, each box includes an educational guide created by dog trainer Andrea Arden, which is designed to help you understand how to best care for the changing needs of your puppy; it includes positive training tips and tricks, too. Each PupBox contains USA- or Canada-made treats, toys, and accessories. Plans start at $29/month.