I believe we had another interesting thread on this recently here on HN I think the main reason is that mobile apps often provide a more immediate return on in

I believe we had another interesting thread on this recently here on HN I think the main reason is that mobile apps often provide a more immediate return on investment - especially on apps designed for the consumer space. You can potentially track much more and then sell that data, ping people with notifications wherever they are, and there is a huge userbase of both technically savvy and less technically savvy