They're the same on the app and on the website for me.
1. "Open reading settings" opens a popup window that loads infinitely.
2. Text to Speech doesnt work on Latvian and Estonian (from the languages I tested) when clicking on a word or pressing the volume looking like button next to the word. I dont know if that should have any effect but I tried switching from Samsung TTS to Google TTS on my phone and have both of those language voice packs downloaded.
3. When adding my profile picture, it bugged and it has only the top 3rd loaded in and now when I click "Choose image" it does nothing.