Subscription VOD (SVOD) services use a subscription business model, where subscribers are charged a daily, weekly, monthly, or yearly fee to access unlimited programs. These services include Netflix, Amazon Prime Video, Hulu.
Advertising video on demand (AVOD) is a VOD model which uses an advertising-based revenue model. This allows companies that advertise on broadcast and cable channels to reach people who watch shows using VOD. As well, this model allows people to watch content without paying subscription fees. Example: Youtube.
Transactional video on demand (TVOD) is the opposite to subscription video. The model assumes purchase of each movie separately. Example: Itunes Store Apple.
Pay per View
The model is used for payable live broadcasts of single events: sports events, concerts, festivals. Such model is popular for broadcasting of combat sports: MMA, boxing, wrestling.