Why do they do this?
Money. Same as the TVs.
Session replay data tells companies exactly where users drop off, what they ignore, what they tap.
That data is worth billions in UX optimization and ad targeting.
Glassbox, FullStory, Appsee, and UserReplay are the biggest session replay companies.
Their clients include airlines, banks, and retail apps used by hundreds of millions of people.
Your screen is their product.