The HBO Max app will be available on Tuesday on Amazon Fire TV streaming devices, smart TVs and tablets, WarnerMedia said.
The deal ends a monthslong impasse between the two giants that centered, in part, on who controls valuable user data. HBO Max plans to introduce an ad-supported version of its service next year.
Launched in May, HBO Max finished the third quarter with 8.6 million active users. Becoming available on Amazon devices will help the service grow faster.
HBO Max, however, is still unavailable to consumers who use Roku Inc. devices to watch streaming services. Roku had 46 million active accounts at the end of the third quarter.