Yes. Summio is free to download from the App Store and includes a free tier. Premium and Max subscriptions unlock unlimited summaries, Dialogue, and advanced Practice.

What languages does Summio support?

Summio supports 27 interface languages including English, Spanish, French, German, Portuguese, Italian, Russian, Arabic, Japanese, Korean, Simplified Chinese, and Traditional Chinese.

What can Summio summarise?

Four sources: full-length books, YouTube videos of any duration, web articles, and PDF documents. Every summary is generated by AI in the language you choose.

Does Summio work offline?

Generating new summaries and using Dialogue requires an internet connection because the AI runs in the cloud. Once a summary is created, you can re-read it offline inside the app.

Can I cancel anytime?

Yes. Subscriptions are managed through your Apple ID and can be cancelled at any time in Settings > Apple ID > Subscriptions on your iPhone. You keep access until the current period ends.

How much does Summio cost?

Summio is free to download and includes a free tier. Premium is $4.99 per month or $39.99 per year. Max is $9.99 per month or $79.99 per year. Yearly plans save 33% versus monthly. All payments are processed by Apple.

Is Summio a Blinkist alternative?

Yes, but with a wider scope. Blinkist offers a curated catalogue of book summaries; Summio summarises any book, YouTube video, long-form article, or PDF you point it at — on demand, in 27 languages, with chat over the full source text.

Does Summio summarise YouTube videos?

Yes. Paste any YouTube URL — lecture, podcast, talk, or playlist. Summio fetches the transcript and produces a clean editorial summary with timestamps preserved. You can chat with the full transcript afterwards.

Can Summio summarise PDFs?

Yes. Upload research papers, manuals, reports, even scanned books. OCR runs automatically when needed. The PDF stays inside your account and never leaves it. You get a structured summary plus an inline chat over the full document.

How accurate are Summio AI summaries?

Every claim in a Summio summary points back to a passage in the source. If the engine cannot ground a claim, it is not printed. AI is not perfect — Summio is a reading companion, not a substitute for the original work for medical, legal, or financial decisions.

Is Summio available on Android?

Not at launch. Summio is iPhone and iPad only on iOS 18 and later. An Android version is on the roadmap but does not yet have a date.

Summio is built by a small independent team. It is not part of a larger publisher. Contact: support@summio.org for support and privacy@summio.org for privacy questions.

AI Tool · Summarize Articles

AI Article Summarizer for Long Reads & Newsletters

Summio's AI Article summarizer turns any article into a structured editorial reading at the depth you choose: short, medium, long, or detailed. Free on iPhone, available in 27 languages, with chat over the full source after the summary.

How it works

Step 01
Open Summio. Pick "Article".
Tap the Create button on the home tab and choose the article source.
Step 02
Paste the article URL
Example: https://www.example.com/long-essay
Step 03
Pick depth → start reading.
Choose short, medium, long, or detailed. Tap any line to chat with the source.

What you get

Works on Substack, Medium, magazine sites, blogs, newsletters
Keeps the author’s voice — summary, not paraphrase
Chat with the full article after the summary

Why Summio

Why Summio: source breadth, languages, and price compared to single-purpose tools
Feature	Summio	Single-purpose tools
Source breadth	Books, YouTube, articles, PDFs — one app	One source type only
Languages	27	English-first, a handful
Price	Premium $39.99/year ($4.99/month)	Varies — often higher

Pricing

Summio Premium

$4.99/month · $39.99/year

Save 33% on the annual plan

Get Summio on iPhone →

Available on iOS 18+ · 27 languages · No credit card to start

Common questions

Does it work behind paywalls?

No. Summio respects paywalls. If the article is gated, log in or copy-paste the text into a PDF and upload it.

Will it preserve quotes and citations?

Yes. Summio extracts pull quotes verbatim and links every claim back to its passage in the source.

How long is the summary?

You pick — short, medium, long, or detailed. A 25-minute longread compresses to ~4 minutes at short depth, ~10 minutes at detailed.

Also summarise

Books · YouTube videos · PDFs