To change the reading mode in the Quran, open the Quran in the Sajda app. Tap the Menu (three dots) at the bottom of the screen. Choose "Reading Mode" - "Surah." If you prefer to scroll through pages, choose "Reading Mode" - "Page."
For Sajda Plus subscribers, there is a "Mushaf" reading mode, where you can read the Quran with Tajweed in Arabic.