Sumr vs Extension AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
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.
- Summarize articles
- Fact-check information
- Explain content (ELI5)
- Translate text
- Generate questions
- Analyze entire webpages
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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
Verdict
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
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.
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.
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.
| Parameter | Sumr | Extension AI |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.5 (6 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 80.0% of reviews — better | 40.0% of reviews |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 10 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 117 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Larionov | Pierre Stanislas |
Customer experience
Sumr
Extension AI
In-app purchases
Sumr
- Subscribe (monthly)7 Days trial$2.991 Month
- Subscribe (yearly)7 Days trial$22.991 Year
- Follow Up$3.99
- Lifetime$59.99
Extension AI
No in-app purchases









