: Repositories like Uptodown and Aptoide maintain extensive version histories for Librera. Technical Details & Safety

: Librera remains a highly customizable, open-source reader supporting formats like PDF, EPUB, MOBI, and DjVu.

: You can find this specific build (4852/4970 series) in the Librera Reader 8.8.4-fdroid collection on the Internet Archive.

: Build 4970 is a legacy version. Newer builds, such as version 9.3.75, typically require Android 7.0 or newer .

: Build 4970 is the internal version code for Librera Reader 8.8.4 .