premium.to is described as 'service where you can download from file hosting services much faster than free users. Several of the most used file hosting services are supported' and is a File Hosting Downloader in the File Sharing category. There are more than 10 alternatives to premium.to, not only websites but also apps for a variety of platforms, including Google Chrome, SaaS, Firefox and Opera. The best alternative is Put.io. It's not free, so if you're looking for a free alternative, you could try DailyLeech or Leech Space. Other great sites and apps similar to premium.to are MyDebrid.com (Paid), Real-Debrid (Paid), Alldebrid (Paid) and LinkSnappy (Paid).
LinkSnappy is one login for all filehosts. Premium downloading from over 60 filehosts are supported(Uploaded/Keep2Share/Rapidgator/Uploadable/Share-Online etc). Price of its access starts from as low as $5.