# Sutra — eBook Reader — user reviews > 8 indexed App Store user reviews of Sutra by Koustav Dasgupta, rated 4.00/5 from 5 ratings. - Source: https://appshunter.io/ios/app/sutra-ebook-reader/id6780096864/reviews - App overview in markdown: https://appshunter.io/ios/app/sutra-ebook-reader/id6780096864.md - Rating breakdown: 5★ 3 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 1 ## Most critical reviews (8 lowest-rated) ### 1/5 — Calibre web support broken *2026-08-08* I have tried several times now to get my Calibre web library working but it just hangs. I’ve done so much troubleshooting on my server to try and diagnose why it doesn’t work. I can put in my server details and it recognizes my library but just never returns. If I ever get it working maybe I can see how well it actually works as an OPDS client. Komga support is also welcome and interesting but I’m not paying money if I can’t get the basic functionality working. **Developer response:** Sorry to hear that! I would appreciate it if you could submit feedback here with your specific issue, and I will take a look to see how we can fix it - https://sutra-reader.com/feedback.html ### 4/5 — Display of pdf *2026-08-18* Another comment: for pdf richely designed, i.e. with pictures, frames, etc. there should be an option to display the original pdf as-is, without rendering it’s text independently from the original design. Comment because some pdf aren’t really readable because of this rich design which is difficult to handle **Developer response:** Thanks for the feedback! I'll look into full white characters for a dark theme as an option. To your other question, I'm trying to create an option for users to open a couple of cbz files as a part of the free offering so that they can test out the feature as a part of the 2.1 release ### 4/5 — Handling of epub full pages should be improved *2026-08-04* The application is great, in particular it’s ability to connect to Calibre and Kavita servers. However, the display of epub pages is weak and could be improved. The page does not fully occupy the full display of an iPad Furthermore when you choose a dark theme full white characters could be enabled to enhance contrast You should also allow one import of cbz file so that one can test your display of a comic, before buying the pro version **Developer response:** Thanks for the feedback! I'll look into full white characters for a dark theme as an option. To your other question, I'm trying to create an option for users to open a couple of cbz files as a part of the free offering so that they can test out the feature as a part of the 2.1 release ### 5/5 — Amazing reading experience *2026-08-06* This is a solution for all your e reading problems. Loving the ability to link to Kavita and Gutenberg. And the reading experience has been fantastic. Takes a bit to load my library, but is great after that. ### 5/5 — Smooth *2026-08-04* I like that it is easy in use. Also that it is free. Thanks to the app I did setup my own calibre( i will test it for 1-2 weeks and definitely support. Even if I don't need that extra options). Maybe we can get a Google translator. ### 5/5 — Finally got https running *2026-07-17* https was incredibly hard to figure out but once the setting were ther this app works like a charm 5 stars **Developer response:** Thank you!! ### 5/5 — Very nice *2026-07-14* Very good app, I can't wait to see how it evolves. The developer is responsive and very nice, the update with the page curl animation is lovely. Thank you ! **Developer response:** Thank you!! ### 5/5 — Very good *2026-07-14* Great integration with kavita. It is the only OPDS app Ive seen that will load in my epub comics **Developer response:** Glad to hear that. Thanks for your review! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*