# Vienna RSS (open-source email and calendar app)

> Vienna RSS is a free, open-source email and calendar app for macOS. Vienna is a free and open-source RSS/Atom/JSON feed newsreader for macOS. It has 1,975 GitHub stars and is released under the Apache-2.0 license. Its source code is on GitHub at ViennaRSS/vienna-rss.

Vienna is an RSS/Atom/JSON Feed reader for macOS. Vienna offers an experience modeled after Apple Mail: quickly scan feed summaries, then open individual articles for deep reading within a simplified browser view.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/ViennaRSS/vienna-rss |
| Platforms | macOS |
| Interface | desktop GUI |
| GitHub stars | 1,975 |
| License | Apache-2.0 (open source) |
| Replaces | n/a |
| Language | Objective-C |
| Website | https://www.vienna-rss.com |
| Official | yes (published by the project behind the app) |
| Category | Email & calendar |
| Latest release | v/3.10.8 (Jul 19, 2026) |
| Last commit | Oct 5, 2026 |

## Install

### Homebrew (macOS)

```sh
brew install --cask vienna
```

Package page: https://formulae.brew.sh/cask/vienna

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