I have the same complaints. I used to be able to watch videos for extra SS on my iPad, but I can't do that anymore. The app is very inconvenient and difficult to use. Whenever I am using it to read web novels, I prefer using the Safari web browser instead because it's less of a headache.
Since more SS can be obtained using the app, I've spent hours trying to figure out how to earn extra SS and experience from my PC. I've even downloaded the app from the Google Play store to my computer, but it doesn't work. Once I gave up on that and tried going to my iPad again, I deleted and reinstalled the app all over again. The first notice that popped up asked me to install the app for extra SS. Does it not realize that the program I opened it on is the app? Even now, I can't do anything on the current app platform. I didn't use my iPad too heavily for reading, so I'm not sure which update screwed it up, but it used to work in the past.
The web browser is so much easier to use. I feel like the prioritization for the app is just a tease that doesn't even work or doing anything. Even the subscription option isn't a real thing for me. I only know it exists because people have commented about it before.