# FLAT RSS Reader vs An Otter RSS Reader

The clearest difference is in-app purchases: FLAT RSS Reader at none against An Otter RSS Reader's 10. FLAT RSS Reader also leads on rating (4.4 vs 4.1). An Otter RSS Reader's advantage is ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. An Otter RSS Reader sells 6 in-app purchases, starting at $9.99 per year. FLAT RSS Reader asks for nothing beyond the download.

FLAT RSS Reader holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: An Otter RSS Reader has 73 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 50% of FLAT RSS Reader's written reviews are positive against 60% of An Otter RSS Reader's, so the app with the better star average is not the one people write more warmly about.

FLAT RSS Reader ships an update every 2 months, An Otter RSS Reader every 3 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | FLAT RSS Reader | An Otter RSS Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/flat-rss-reader/id882417369/reviews)** | [4.1 (73 ratings)](https://appshunter.io/ios/app/an-otter-rss-reader/id1529696614/reviews) |
| Number of ratings | 8 | **73** |
| Positive reviews | 50.0% of reviews | **60.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 39 MB | 45 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 17+ |
| Developer | [Nobuhide Uzawa](https://appshunter.io/developer/869281903) | [Josh Holtz](https://appshunter.io/developer/1460622095) |

## What reviewers say

### FLAT RSS Reader

[App page](https://appshunter.io/ios/app/flat-rss-reader/id882417369)

This app offers a streamlined way to follow your favorite news sources. Easily manage your RSS feeds, discover new ones from website URLs, and save interesting articles for later access.

**Highlights:** Manage registered RSS information, Get RSS from website URLs, Register favorite news content, Simple outlook, Useful functions

**Features:** macOS Compatibility

**In-app purchases:** none


### An Otter RSS Reader

[App page](https://appshunter.io/ios/app/an-otter-rss-reader/id1529696614)

A minimalistic RSS reader that synchronizes your subscribed feeds across Apple devices via iCloud. It allows for automatic feed discovery, organization into folders, and reading articles in a standard web view. Integrates with Shortcuts and offers home screen widgets for unread counts.

**Highlights:** iCloud feed synchronization, Auto-discover RSS feeds, Group feeds into folders, Read articles in web view, Shortcuts integration, Home screen widgets, Import/Export with OPML

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otter Pro Annual | $9.99 | per year |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $5.99 | one-time |
| Mega Tip | $12.99 | one-time |
| Otter Pro Lifetime | $19.99 | one-time |

**What reviewers like**

- 👍 Elegant and convenient
- 👍 Great app
- 👍 Cute RSS reader in every way
- 👍 Works Great, syncs on all iOS Devices
- 👍 More than an 'okay minimalistic app'

**What reviewers complain about**

- 🐛 It does not work
- 🐛 Abandoned app
- 🐛 Bug list view dark mode
- 🐛 Only shows a couple of entries
- 🐛 Missing keyboard shortcuts

**Reported bugs**

- It does not work
- Articles flicker in and out of existence and about 30 of them don't show at all
- The list views are messed up with many black spaces where a feed item should appear but is completely black
- Reader mode seems to not work
- Articles show up in duplicated often, articles had been marked as read will show up again as unread

**Requested features**

- Encripted iCloud backups would be welcome
- Mark articles read on scrolling past them
- Option to hide read articles by default instead of manually hiding all the time
- When clicking on a top level folder it expands the folder clicking the arrow should expand the folder
- Needs swipe gestures example swipe right mark read/unread swipe left add to favorite


## Frequently asked questions

### Is FLAT RSS Reader free?

FLAT RSS Reader is free to download, with no in-app purchases.

### Is An Otter RSS Reader free?

An Otter RSS Reader is free to download, with in-app purchases available.

### Which has better reviews, FLAT RSS Reader or An Otter RSS Reader?

FLAT RSS Reader is rated higher. FLAT RSS Reader averages 4.4 out of 5 from 8 ratings, while An Otter RSS Reader averages 4.1 from 73 ratings.

### Do FLAT RSS Reader or An Otter RSS Reader have ads?

FLAT RSS Reader shows ads; An Otter RSS Reader does not.

### Which is updated more often, FLAT RSS Reader or An Otter RSS Reader?

FLAT RSS Reader ships an update every 2 months, and An Otter RSS Reader every 3 days. Most recently, FLAT RSS Reader was updated on November 1, 2026 and An Otter RSS Reader on November 3, 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.*