Item
¥8CNY
Screenshots come from the App Store listing. They are shown at full aspect ratio, never cropped. Click to enlarge.
From the App Store SourceRiidaa is a no-nonsense PDF and text reader. It creates a single bookmark for each new text and keeps track of your last read page. There is no other data being stored and no data transmitted, no in-app purchases.
The developer is Thomas Sturm, and the app identifier is Thomas-Sturm.Riidaa.
It was first released on 2025-03-24, according to our own database record.
Every number in these answers comes from the data shown above on this page.