Yes. If you purchase a subscription to Lifetime Movie Club and create a profile on one device, you can use the same login to sign in on any other supported devices where the Lifetime Movie Club app is available.
You can use a Lifetime Movie Club subscription to watch on your computer at lifetimemovieclub.com, on Apple devices (including iPhone, iPad & Apple TV), on Android devices, on Amazon Fire TV devices, on Vizio TVs, on Samsung TVs and on Roku. You can also cast videos to a Chromecast-enabled TV using the Chrome web browser or our Apple or Android phone apps.