Sequences allow you to guide and message a customer over multiple visits and across devices all while maintaining awareness of how the customer responded to the previous message. This allows you to:
Wouldn't it be great if you knew that the customer had not just acted on a guidance but even just having seen it? Sequences let you know just that. Now you can make the next message to the same user conditional on the previous message being seen. When your service is accessed on multiple devices like desktop/laptops, mobile, and TVs, you can use a Sequence to guide the user in a much more contextual manner based on the device they next access your service from.
For example, it may be much more meaningful to show users on a tablet a 1-click guidance to download the next episode of the show they watched. Further, when a user has downloaded based on that guidance, you may wish to promote your premium membership option on a TV device with much lower signup friction through in app billing.