Exactly. That was how the internet worked before the web (and still does today): pop/smtp, ftp, nntp, gopher, etc. had each one its own client because they were different protocols doing different things. But today, when phones have a working web browser that does what 99% of apps can do and more, it's against any logic forcing people to install an app for every brand, sometimes for every product. That would be ok for mail, news, file transfer, IoT, music, video, etc. because they're way different things, but installing 5 apps to read 5 newspapers or buying 5 products from 5 different vendors is like throwing into the toilet all innovation brought since the web was invented. I can guess only three reasons for this: sticking a brand name into the user screen, bypassing browsers adblockers, and getting a foot into the door for nefarious purposes since most apps require insanely dangerous privileges which one day could be exploited.