Amazon differs from some of its competitors by offering separate add-on channels in addition to what’s included with your Prime membership. Now it’s adding two more: HBO and Cinemax.
Cinemax costs an extra $9.99 a month, while HBO is $14.99 a month, so you’re not actually saving any cash over just signing up for HBO Now. Still, there are at least a couple of benefits; you can
download Amazon Prime videos for offline viewing (Update: it turns out you can’t for any Amazon Channels) and you can keep more of your videos in a single app.
You can sign up for a 30-day trial of HBO or add Cinemax to your line-up over at amazon.com/channels.