# Matthias Petrat vs Flat RSS

The clearest difference is update cadence: Flat RSS at every 10 days against Matthias Petrat's every 5 weeks. Flat RSS also leads on iOS requirement (18.6 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Matthias Petrat sells 3 in-app purchases, starting at $3.99 per month and Flat RSS sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Matthias Petrat ships an update every 5 weeks, Flat RSS every 10 days. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Matthias Petrat | Flat RSS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 64 MB | 19 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Matthias Petrat](https://appshunter.io/developer/1440523515) | [Rene Fischer](https://appshunter.io/developer/1868527187) |

## What reviewers say

### Matthias Petrat

[App page](https://appshunter.io/ios/app/matthias-petrat/id1440523516)

Stay updated with the latest content from a popular blog. Receive push notifications for new posts, browse archives by category or search, and save favorite articles with iCloud sync. Enjoy a seamless experience across iPhone, iPad, and Mac.

**Highlights:** Push notifications for new posts, Browse blog archive by category, Full-text search, Favorite articles with iCloud sync, Universal app for iPhone, iPad, and Mac, Stage Manager and Split View support

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro-Version für einen Monat | $3.99 | per month |
| Pro-Version für 3 Monate | $8.99 | per 3 months |
| Pro-Version 12 Monate | $24.99 | per year |


### Flat RSS

[App page](https://appshunter.io/ios/app/flat-rss/id6759013390)

Consolidate all your reading, watching, and listening into one calm, chronological feed. Save articles, videos, and podcasts from various sources, with offline access and cross-device sync. Enjoy a private, ad-free experience.

**Highlights:** Unified feed for RSS, podcasts, videos, social media, Save articles, videos, and links to Stash, Offline access for saved content, Cross-device iCloud sync, Ad-free and privacy-focused experience, Customizable feed filtering

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flat Pro Monthly | $3.99 | per month |
| Flat Pro Yearly | $19.99 | per year |
| Flat Pro Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is Matthias Petrat free?

Matthias Petrat is free to download, with in-app purchases available.

### Is Flat RSS free?

Flat RSS is free to download, with in-app purchases available.

### Do Matthias Petrat or Flat RSS have ads?

Neither Matthias Petrat nor Flat RSS shows ads.

### Which is updated more often, Matthias Petrat or Flat RSS?

Matthias Petrat ships an update every 5 weeks, and Flat RSS every 10 days. Most recently, Matthias Petrat was updated on November 11, 2026 and Flat RSS on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*