# 4RSS — Minimal RSS Reader, 4 Feeds

> 4RSS is a minimalist RSS reader for iPhone with exactly four feed slots. Pick the four sources you really care about, open the app and read. No accounts, no tracking, no endless inbox. Developed by Robert Poetzsch under the robspace brand.

## About

4RSS is an iPhone app for reading up to four RSS or Atom feeds.

- Platform: iPhone, iOS 26.1 or later
- Price: paid app in the App Store (USD 0.99 / EUR 0.99 as of 2026-10-14; prices may vary by country); AI summaries use the user's own API key, and the AI provider may charge for API usage
- Version: 2.6 (English, German, French, Spanish and Italian) — in the App Store, released 2026-10-26; first release 2026-02-18
- Developer: Robert Poetzsch (robspace), Hofheim am Taunus, Germany; support@robspace.de

## Key Features

- Four RSS or Atom feed slots in the bottom bar, each with its own icon and unread counter
- Built-in browser for articles; share links with the iOS share sheet
- Articles you open are marked as read; mark a whole feed as read with one tap
- Favorites with a filter that shows only starred articles
- Pull to refresh; choose which feed opens when the app starts
- Optional AI summaries (beta) with your own API key for Claude (Anthropic), OpenAI, Google Gemini or Mistral: article summary, snippet to share, summary of today's or this week's news
- No account, no ads, no analytics, no tracking; feeds, favorites and settings stay on the iPhone, API keys in the iOS Keychain
- Always-dark design in warm amber
- Available in English, German, French, Spanish and Italian; follows the iPhone language
- iPhone Duo (from version 2.6): fully open, headlines on the left and the article on the right; half open, the receiver layout with headlines and the four feeds on one side of the fold and the article on the other; folding keeps feed, article and reading position

## Privacy

4RSS has no server of its own, no user account, no analytics, no advertising, no tracking and no third-party SDKs; the developer receives none of the user's data. Feeds, read status, favorites, a seven-day article cache and settings are stored only on the device; API keys are kept in the iOS Keychain. The app connects only to: the feed addresses the user entered; the web pages of articles the user opens or has summarized; and the feed's own server to load its icon (first /favicon.ico, otherwise the icon named on that server's start page; from version 2.5 no third-party icon service is used). AI summaries are optional and off by default: they work only with the user's own API key for Claude (Anthropic), OpenAI, Google Gemini or Mistral, and before anything is sent to a provider for the first time the app shows what will be sent and asks for agreement once per provider. For a summary the app sends the article title, date and up to about 5,000 characters of text (about 3,000 for a mini-summary for sharing); for a news summary the feed name, the period, titles, dates and up to about 2,000 characters of text of up to ten articles plus titles and dates of further articles; the request also names the app language. No links, no other feeds and no device identifiers are sent. The provider's own terms and privacy policy apply. To stop using AI, set the provider to "None" under Settings → AI Features → AI Configuration; a saved key is deleted there with "Remove Key".

## Links

- [App Store](https://apps.apple.com/app/id6756433329)
- [Website (English)](https://4rss.app.robspace.de/)
- [Website (Deutsch)](https://4rss.app.robspace.de/de/)
- [Website (Français)](https://4rss.app.robspace.de/fr/)
- [Website (Español)](https://4rss.app.robspace.de/es/)
- [Website (Italiano)](https://4rss.app.robspace.de/it/)
- [Privacy policy](https://4rss.app.robspace.de/#privacy) (same anchor on every language page, e.g. https://4rss.app.robspace.de/de/#privacy)
- [FAQ](https://4rss.app.robspace.de/#faq)
- [Release notes](https://4rss.app.robspace.de/#changelog)
- [Legal notice (Impressum)](https://4rss.app.robspace.de/#impressum)
- [Full page text for LLMs](https://4rss.app.robspace.de/llms-full.txt)
- [robspace — all apps by Robert Poetzsch](https://robspace.de/)
- [Community: bug reports, ideas, discussions](https://github.com/RobEarth0815/robspace-apps)