Google Play provides both sale and rental options for titles on their storefront. Any customer can access the Google Play storefront for free and make purchases.
If a customer rents a title, the customer has 30 days to start watching the title. Once the customer starts watching the title, the customer has a set window of time to finish watching the title. This window varies by title.
If a customer purchases a title, the customer can watch the title indefinitely via the customer's Google Play account.
To view the Google Play storefront, click here.