Comparison

SereneReader vs CMRSS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SereneReader

A minimalist RSS reader designed for focused reading without distractions. Syncs across all your devices and offers offline access to articles. Organize your feeds and discover new content with ease.

Highlights
  • Offline article reading
  • Cross-device sync
  • Minimalist interface
  • Customizable reading view
  • Feed organization
  • Discover new feeds
Features
Read full description

Read without the noise. SereneReader is a calm, native RSS reader for people who want to read — not manage notifications. No ads, no algorithms, no AI summaries you didn't ask for. Just your feeds, in a quiet interface built around the text. WORKS EVERYWHERE, IN SYNC Native apps for iPhone, iPad, Mac, and Apple Watch, plus the web at serenereader.com. Star an article on your phone and it's already starred on your Mac — reading state, feeds, and folders sync across every device in real time. CALM BY DESIGN The interface feels like a quiet room. Articles open in a clean reading view, and a focused mode strips everything away except the words. Adjust font size, line height, and content width to taste. Hand-tuned themes — including the easy-on-the-eyes Jade Night — make late-night reading comfortable. READS WELL OFFLINE Articles are cached on device. Read on the train, star and mark things as you go, and every change syncs when you're back online. YOUR READING, YOUR RULES Organize feeds into folders, search everything, and browse a curated Discover catalog to find new feeds when you want them. Import and export your subscriptions with OPML. Nothing is pushed on you: no streaks, no badges, no "we noticed you haven't opened the app." Full keyboard navigation on Mac and iPad; swipe actions on iPhone. FREE TO START Free to download and read. An optional Pro upgrade unlocks higher feed limits, every theme, and API access — no credit card to get started, no trial that quietly locks you out. Sign in takes seconds: a code by email, or your Google, GitHub, or Apple account. No passwords to remember. Terms of Use: https://serenereader.com/terms

About

CMRSS

This news reader offers a streamlined way to consume content across all Apple devices. It features on-device AI for article summarization and robust organization tools, ensuring a private and efficient reading experience.

Highlights
  • iCloud sync across Apple devices
  • On-device AI article summarization
  • Tabbed reading with built-in browser
  • Organize feeds into folders
  • Follow YouTube, Reddit, X, Instagram, TikTok, Facebook
  • Smart Folders with custom rules
  • Widgets for desktop and Home Screen
Features
Read full description

CMRSS — A native RSS reader for Mac, iPhone, and iPad CMRSS is a fast, beautifully native RSS reader that keeps up with everything you follow — and helps you read it in less time. One app, every Apple device, perfectly in sync. Everything, everywhere — automatically Your feeds, folders, and read/unread state sync seamlessly through iCloud. Set things up once and pick up exactly where you left off, whether you're on your Mac, iPhone, or iPad. Read smarter with on-device AI Get a clear one- or two-sentence summary of any article, generated privately on your device with Apple Intelligence. Skim your feeds, catch what matters, and dive in only when you want to. Nothing is sent to a server. Built for focused reading • Tabbed reading with a built-in browser — open full articles without leaving the app, and your open tabs follow you to your other devices • Unread-first workflow — jump straight to what's new, or browse everything • Organize feeds into folders that stay in sync everywhere • Tune your layout: title line count, summaries on or off Follow more than blogs • Paste a YouTube channel or a subreddit — CMRSS finds the feed for you • Follow X, Instagram, TikTok, Facebook pages, and entire websites through the optional RSS.app integration (RSS.app account required) • Import and export OPML to bring your subscriptions with you — or take them anywhere Smart Folders • Folders that fill themselves — collect articles by title, content, feed, age, or read state • Combine rules into nested any/all groups for precise filters • Unread counts and iCloud sync, just like regular folders Widgets for your desktop and Home Screen • An unread ring for a glanceable count, or latest-articles widgets in two sizes • Show everything or pick a single feed; tap to jump straight to the article Never miss what you care about • Smart background refresh on your schedule (every 5, 15, 30, or 60 minutes) • Flexible notifications: a single sync summary, one per feed, or one per article • Mark important feeds for per-article alerts • An app-icon badge that always shows your unread count Power features • Dispatch Actions — send any article to your other apps through Shortcuts, with keyboard slots ⌘1–⌘5 • Spotlight search — find your articles right from the desktop or Home Screen • Curated suggestions to get you started fast • Automatic cleanup — choose how long to keep articles to control storage Private by design Sync runs through your own iCloud account, and AI summaries are generated entirely on-device. No third-party servers. No tracking. Your reading is yours. Free to try, one purchase to own Every feature is free with up to 5 feeds. A single one-time purchase unlocks unlimited feeds — no subscription, yours forever. Download CMRSS and make your feeds feel effortless again. Note: AI article summaries require a device that supports Apple Intelligence.

Screenshots

SereneReader4 screens
CMRSS4 screens

Verdict

The call

SereneReader and CMRSS are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SereneReader sells 1 in-app purchase, starting at $6.99 per month and CMRSS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SereneReader ships an update every 3 days, CMRSS every 6 days. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

ScorecardNo meaningful differences
SereneReader versus CMRSS: the parameters behind the verdict, then further details
ParameterSereneReaderCMRSS
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, Mac
Requires iOS26.026.0
Further details — not scored
Size4 MB20 MB
Age rating4+17+
DeveloperJonesLabs LLCCharlie Monroe Software, s.r.o.

Customer experience

SereneReader

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CMRSS

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

SereneReader

Subscriptions1
  • Pro$6.991 Month
1 purchases

CMRSS

One-time1
  • CMRSS Pro$9.99

Questions

Is SereneReader free?
SereneReader is free to download, with in-app purchases available.
Is CMRSS free?
CMRSS is free to download, with in-app purchases available.
Do SereneReader or CMRSS have ads?
Neither SereneReader nor CMRSS shows ads.
Which is updated more often, SereneReader or CMRSS?
SereneReader ships an update every 3 days, and CMRSS every 6 days. Most recently, SereneReader was updated on September 30, 2026 and CMRSS on September 24, 2026.

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