Fluent Reader vs Vienna RSS (2026): which should you pick?
As of Nov 12, 2026, Fluent Reader and Vienna RSS share a 3.0 GPA, both are free, so the choice depends on whether you care more about platforms, where Fluent Reader grades higher, or features, where Vienna RSS does.
Checked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA
They get the same grade on value for money, the free plan and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick Fluent Reader if
- Fits if you read on one computer and want your feeds stored there
- Works for people who sort incoming articles with regex rules
Look elsewhere if
- Skip it if you need your reading list on a phone from the same app, because mobile is a separate project
- Not for you if you want built-in sync, since it needs Inoreader, Feedbin or another outside service
- Watch out: Windows comes from the Microsoft Store, while Linux builds come from GitHub releases
Pick Vienna RSS if
- Fits if you read feeds on a Mac and like a mail-style layout
- Works for people who sync through FreshRSS, Inoreader or BazQux
Look elsewhere if
- Skip it if you use Windows, Linux or a phone, because it's macOS only
- Not for you if you run an older Mac, as 3.11.x needs macOS 10.15 (Catalina) or newer
- Watch out: it has no sync of its own, so syncing needs another service that supports the Open Reader API
How we grade them
| 3.0GPAFluent ReaderVery good | 3.0GPAVienna RSSVery good | |
|---|---|---|
| Value for money | AFree and open source, with optional donations and no paid plans, against a $2.50 start for the cheaper quarter of reading apps. | AFree under Apache 2.0, with no paid plans listed, against a $2.50 start for the cheaper quarter of reading apps. |
| Free plan and trial | AThe whole app is free with nothing locked, so there's no cap to reach. | AThe whole app is free and nothing is held back. |
| Features | CLocal reading, regex search, rules, groups and backups. The gap the listing names is sync: the app has none of its own and relies on outside services. | BDirect feed reading, a mail-style layout, plug-ins, custom display styles and Open Reader API sync. Nothing in the listing is missing for feed reading. |
| Ease of use | BNo rating on record. Install it, import an OPML file and read; there's nothing else to set up for local use. | BNo rating on record. Download it, add feeds and read, with nothing else to set up. |
| Platforms and integrations | CWindows, Mac and Linux only. The mobile version is a separate project, Fluent Reader Lite, and there's no web app. | DmacOS only, and 3.11.x needs macOS 10.15 or newer. No iOS, Windows, Android or web version. |
| Best for | a free desktop RSS reader that keeps feeds locally | a free RSS reader for the Mac |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Fluent Reader and Vienna RSS. How we grade
Price against what you get
Fluent Reader has no paid plan and scores 2.3 out of 4 on features, ease of use and platforms. Vienna RSS has no paid plan and scores 2.3.
On this chart the two sit in the same place: the same score for the same starting price. Of the other read-later and bookmark apps on the chart, none scores higher than Fluent Reader for less, and none scores higher than Vienna RSS for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
At a glance
| Fluent Reader | Vienna RSS | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | None | None |
| Free trial | None listed | None listed |
| macOS | ||
| Windows | ||
| Linux | ||
| Made by | Haoyuan Liu | ViennaRSS Project |
| Price read from | apps.apple.com | vienna-rss.com |
| Checked | Nov 12, 2026 | Nov 12, 2026 |
Worth knowing
Fluent Reader
- The mobile version is a separate project (Fluent Reader Lite), not part of this app.
- Syncing needs an outside service; the app has no sync of its own.
- Windows has a Microsoft Store build; Linux builds come from GitHub releases.
Vienna RSS
- It runs on macOS only; no iOS, Windows, Android or web version is listed.
- Releases 3.11.x need macOS 10.15 (Catalina) or newer, per the README.
- Syncing needs a separate service that supports the Open Reader API; Vienna has no sync of its own.
Key features
Fluent Reader
- Local or synced reading
- Read feeds locally from an OPML import, or sync with services that support Fever or the Google Reader API.
- Article view
- A built-in view shows full text for feeds that carry it; for snippet-only feeds it can fetch full content or open the page.
- Regex search and rules
- Search titles and article content with regular expressions, and hide, star or mark articles read automatically as they arrive.
- Groups and backups
- Organize sources into folder-like groups and move between computers with full data backup and restore.
- Keyboard and dark mode
- Single-key keyboard shortcuts, plus system-level dark mode for both the interface and the reading view.
Vienna RSS
- Direct feed reading
- Connects straight to the sites you track and reads RSS, Atom and JSON feeds without needing an account.
- Mail-style layout
- Scan article summaries in a list, then open a single article in a simplified browser view for deeper reading.
- Open Reader API sync
- Syncs with cloud services using the Open Reader API. The README lists BazQux, FreshRSS, FeedHQ, Inoreader and The Old Reader as tested.
- Plug-ins
- XML-based plug-ins add menu and toolbar actions, and the vendor says one can be built by editing a property list file.
- Custom display styles
- Articles can be shown in different styles, each an HTML template plus a stylesheet, and new ones can be written.
Plans
Fluent Reader
Free$0
Free and open source. The developer accepts optional donations; there are no paid plans.
Vienna RSS
Free$0
The whole app is free and released under the Apache 2.0 license; no paid plans are listed.
Common questions
Which is cheaper, Fluent Reader or Vienna RSS?
As of Nov 12, 2026, both Fluent Reader and Vienna RSS are free to use.
Which has a free plan, Fluent Reader or Vienna RSS?
As of Nov 12, 2026, both Fluent Reader and Vienna RSS have a free plan.
Which platforms do Fluent Reader and Vienna RSS run on?
As of Nov 12, 2026, only Fluent Reader lists Windows and Linux apps. Both list a macOS app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.