OPDSy — an Android OPDS reader that works properly with Ubooquity (successor to Kuboo)

Hi all, I'm the developer of OPDSy, an OPDS comic and ebook reader for Android. I run Ubooquity myself, and for years I read on my phone with Kuboo. But Kuboo died and nothing properly replaced it, so I built the reader I actually wanted.

One thing worth flagging for Ubooquity specifically: a lot of OPDS apps show blank comic pages against Ubooquity, because it advertises its page-stream link ( …/opds/comicreader/{id} ) as an image when that URL actually serves the HTML web reader. OPDSy detects this and requests the real /pagereader/ endpoint, so page-by-page comic streaming just works.

What it does:

• One library, many servers. Add as many OPDS sources as you like (I run Ubooquity alongside Calibre and even Project Gutenberg's catalogue). Each loads independently, so one slow or offline server never breaks the rest, and a colour badge shows where each item lives.

• Built for comics and manga. Streams page by page over OPDS-PSE with prefetching. Paged or continuous scroll, left-to-right or right-to-left, dual-page landscape spreads, pinch to zoom.

• Ebooks too, with adjustable fonts, themes, and optional read-aloud using your device voices.

• Wide format support. CBZ, CBR (also CB7, CBT); EPUB, MOBI, AZW3, FB2; plus PDF.

• Improved on Kuboo — adds reading-status/progress tracking and optional Google Drive sync so your place and favourites follow you.

• Read offline by downloading when you want, though streaming never requires it.

• Private by design. No accounts, no ads, and no tracking whatsoever. Credentials stay in your device keychain; the optional sync is end-to-end encrypted.

It's a paid app, a one-time £3.49, with no ads or subscription.

Play Store: https://play.google.com/store/apps/details?id=com.opdsy

I use it daily against my own Ubooquity server and keep iterating on it. Feedback from fellow Ubooquity users very welcome, if you see problems let me know and i will fix it.