Comparison

Sumr vs Extension AI

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

Head to head
About

Sumr

Instantly condense web pages, articles, and videos into concise summaries. Ask follow-up questions and reformat content with custom prompts. Supports over 40 languages and offers flexible AI provider options.

Highlights
  • Instant web page summaries
  • Ask follow-up questions
  • Customizable summary prompts
  • Supports 40+ languages
  • Multiple AI provider options
  • Local summary storage
  • iCloud sync across devices
Features
Read full description

Summarize it all in one tap. Sumr turns webpages, PDFs, YouTube videos, supported social videos, and shared text into clear summaries. Use it from Safari, the Share Sheet, or Shortcuts, then keep every result in one searchable library. WHAT YOU CAN DO • Share content from Safari, Chrome, Files, Mail, Notes, and other apps • Run Summarize Text from Shortcuts or Siri and pass the result into your next action • Summarize webpages, PDFs, YouTube videos, and supported social videos • Ask follow-up questions without leaving the summary • Customize the tone, structure, and focus with your own prompt • Search and filter saved summaries by content type • Export selected summaries or your full library as Markdown • Back up and restore your summary library • Choose your summary language independently of the source CHOOSE HOW YOU USE AI On supported devices, Apple Intelligence can summarize privately on device, even offline, without an API key or Sumr quota. You can also use Sumr's built-in service or bring your own API key from OpenAI, Anthropic, Google Gemini, xAI, or an OpenAI-compatible provider. Bringing your own key does not require a Sumr subscription. SUMR PREMIUM Annual, Monthly, and Lifetime options unlock premium hosted summaries, PDF and supported social-video processing, Deep Sumr visual analysis, and follow-up features. A separate Follow Ups purchase permanently unlocks questions and custom prompts for bring-your-own-key users. Eligible purchases support Family Sharing. BUILT FOR APPLE DEVICES Your summaries and settings sync with iCloud across iPhone and iPad, with support for Apple silicon Macs. Sumr is designed to stay out of the way until you need it. PRIVACY Bring-your-own-key summarization goes directly to your selected provider. Subscriber requests are processed and immediately discarded. Summaries are saved in the app and sync through iCloud. Terms: https://sumr.1ar.io/terms-of-service/ Privacy: https://sumr.1ar.io/privacy-policy/

About

Extension AI

Enhance your web browsing with an AI assistant that summarizes, fact-checks, and explains content directly within your browser. Interact with AI to get concise summaries, verify information, and understand complex topics easily.

Highlights
  • Summarize articles
  • Fact-check information
  • Explain content (ELI5)
  • Translate text
  • Generate questions
  • Analyze entire webpages
Features
Read full description

Transform your browsing experience with Extension AI, a powerful Safari extension that brings ChatGPT's capabilities right to your fingertips. Whether you select specific text or analyze entire webpages, instantly interact with ChatGPT in multiple ways: • Ask questions and discuss content directly with ChatGPT • Fact-check information with sourced verification • Get concise summaries of long articles • Receive simple explanations (ELI5 style) • Extract key points from complex content • Translate text into multiple languages • Generate thought-provoking questions Supports 11 languages including English, French, Spanish, German, Italian, Portuguese, Dutch, Russian, Chinese, Japanese, and Korean. Perfect for students, researchers, professionals, and anyone who wants to enhance their web browsing with AI assistance. Simple to use: Just select text or let the extension analyze the entire webpage, click the extension icon, choose your desired action, and get instant AI-powered insights.

Screenshots

Sumr4 screens
Extension AI1 screens

Verdict

The call

The clearest difference is price: Sumr at Free against Extension AI's $2.99. Sumr also leads on rating (3.5 vs 1.0) and review sentiment (80% vs 40%). Extension AI's advantage is in-app purchases (none vs 4) and device support (4 vs 2). On ads there is nothing between them.

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

Sumr is free to download; Extension AI costs $2.99 up front. Sumr sells 4 in-app purchases, starting at $2.99 per month. Extension AI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sumr holds the better App Store score, 3.5 against 1.0. That said, the two scores are not equally well evidenced: Sumr has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Sumr's written reviews are positive against 40% of Extension AI's.

UpkeepUpdate frequency

Sumr ships an update every 3 weeks, Extension AI every 10 months. The most recent releases landed on September 16, 2026 and September 5, 2026 respectively.

Scorecard9 real differences · 1 level
Sumr versus Extension AI: the parameters behind the verdict, then further details
ParameterSumrExtension AI
PriceFree — better$2.99
Rating3.5 (6 ratings) — better1.0 (1 ratings)
Positive reviews80.0% of reviews — better40.0% of reviews
Number of ratings6 — better1
Update frequencyEvery 3 weeks — betterEvery 10 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.015.0 — better
Further details — not scored
Size117 MB3 MB
Age rating4+4+
DeveloperPavel LarionovPierre Stanislas

Customer experience

Sumr

All ratings6 ratings
Positive50.0%
Neutral16.7%
Negative33.3%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Extension AI

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

4 purchases

Sumr

Subscriptions2
  • Subscribe (monthly)7 Days trial$2.991 Month
  • Subscribe (yearly)7 Days trial$22.991 Year
One-time2
  • Follow Up$3.99
  • Lifetime$59.99
None

Extension AI

No in-app purchases

Questions

Is Sumr free?
Sumr is free to download, with in-app purchases available.
Is Extension AI free?
Extension AI costs $2.99, with no in-app purchases.
Which has better reviews, Sumr or Extension AI?
Sumr is rated higher. Sumr averages 3.5 out of 5 from 6 ratings, while Extension AI averages 1.0 from 1 ratings.
Do Sumr or Extension AI have ads?
Neither Sumr nor Extension AI shows ads.
Which is updated more often, Sumr or Extension AI?
Sumr ships an update every 3 weeks, and Extension AI every 10 months. Most recently, Sumr was updated on September 16, 2026 and Extension AI on September 5, 2026.

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