Taiwanese phone manufacturer HTC has rolled out its anticipated monthly subscription service for virtual reality content, including video games and short interactive films. For a $7 per month fee, users can download up to five VR titles a month from the online Viveport store. HTC is positioning the new service as a way for customers to try out an app before they decide to purchase it. The service is only available to owners of the HTC Vive VR headset. Among the titles initially available are “Everest VR” and “Mars Odyssey.”