
Sumatra PDF
Evince
calibre
MuPDF
Adobe Reader
FBReader
PDF-XChange Editor
Okular is a universal document viewer based developed by KDE.

FetchRSS
PolitePaul
FiveFilters Feed Creator
Feed43
Feedfry
Distill Web Monitor
Feedly
Monitor the web the way YOU want to.

Which is more popular?
RSS.app might be a bit more popular than Okular. We know about 62 links to it since March 2021 and only 44 links to Okular.
Website, pricing, platforms and company facts side by side.
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| Website | okular.kde.org | rss.app |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Okular is recommended for students, educators, professionals, and any users who require a reliable and feature-rich document viewer capable of handling a wide range of file formats. It is particularly beneficial for those who value open-source software and need robust annotation and document management tools across different platforms.
No analysis of RSS.app yet.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Okular and RSS.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Verdict: Okular is an open source and can be used free, which is probably its main advantage. At the same time, its basic functionality is meant to be not only highly competitive with PDF Expert but rather overcomes...
Okular is another open-source and cross-platform document viewer developed by KDE and is shipped as part of the KDE Application release.
We have no reviews of RSS.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


If you mean signing as in "signing with your handwritten signature", you could use Okular () which easily allows you to do that. Filling out forms also works nicely. Source: almost 3 years ago
I was in a similar position lately until I found Okular. Have you tried it? https://okular.kde.org/. - Source: Hacker News / about 3 years ago
I would try Okular first, though, which is free and open source: https://okular.kde.org/. Source: over 3 years ago
I tried rss.app but it's very slow to update, I need a feed that notifies me within a minute. Source: almost 3 years ago
I want to create an RSS for an imageboard that doesn't have an RSS feed, are there any RSS generators out there like rss.app that is free just for one feed creation? Source: about 3 years ago
I tried adding 'https://thehackernews.com/feeds/posts/default' to the RSS reader but I got the same error, I tried https://rss.app to generate an RSS feed and it worked, so far this seems like the only solution anyway thanks for the... Source: about 3 years ago
When comparing Okular and RSS.app, you can also consider the following products.

Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
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Evince is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS...
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Online tool for creation of RSS feeds for any web page
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Create feed from elements (e.g. links) extracted from a given web page
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