How to make pop-up windows like online stores?

Question

User interface

Hello!
Recently, almost every online store has pop-up windows that report that a certain person has made an order for a certain amount from a certain city (usually either mine or a neighbor's).
Today I saw one guy have the same windows, but already for a subscription. Looks interesting.
Maybe someone knows some kind of service so that this can be done simply, efficiently and affordable. Without the involvement of third-party specialists (without programming).
I found similar questions on several sites, but the issue is solved with the help of scripts!
Thank you!

Answer 1

Creating a pop-up window using scripts is quite simple, which means cheap, on freelance sites you can always find out how much such a service will cost.
If there is no opportunity or desire to develop your online store, then you can use the services of storeland , merchium and similar services.