[hughperkins]

So what they should do is, what Android apps do:

- when you first go to the website, you get the ad-infested website

- you can pay for the app, and now, no more ads. In Android apps, the amount tends to be crazy low, like less than a cup of coffee. Pay that and get no ads is a no-brainer really...

[shabble]

This assumes the app isn't ransacking your device for as much personal or saleable information it can find, in addition to the nominal purchase fee.

Information leakage between sites and apps on mobile no doubt varies wildly based on your configuration and willingness to accept apps requesting outrageous permissions, but I'd suspect web-apps to be easier to protect yourself from, as a user.