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Summio
What it is
Summio turns eligible books, public YouTube videos, compatible public articles, and text-based PDFs into structured summaries. Readers can select short, medium, or detailed summaries, then chat using the summary and available source context; citations appear when available. Its Companion feature creates recall questions and memory practice from summary ideas, and can draw on questions asked in chat. Summio is available on iOS and the web and describes support for 27 languages. PDF uploads must be text-based and no larger than 50 MB or 1,000 pages; image-only scans need OCR before upload. Public YouTube videos need usable transcript context, while articles and PDFs need accessible text. The free plan provides public summaries at no cost. A first AI summary includes one translation and 10 chat questions. Premium and Max provide higher usage, but their prices, billing periods, and any trial terms are shown at checkout. Summio says personal information is not sold and personal content is not used to train Summio-owned models.
For and against
For
- Choose short, medium, or detailed summaries
- Chat can show citations when available
- Companion prepares recall questions and memory practice
- Available on iOS and web
- Free plan includes public summaries at no cost
Against
- YouTube videos require usable transcript context
- Articles and PDFs require accessible text
- Image-only PDF scans need OCR before upload
- Premium and Max prices are shown at checkout
The verdict
Summio brings summaries, source-based chat, and learning practice together for several kinds of reading material. Check source eligibility and PDF limits, and note that Premium and Max pricing is presented at checkout.
Who it suits
Summio suits readers who want help identifying main ideas and deciding which source to read more closely. It can also suit learners who want recall questions and memory practice based on summaries.
Plans and prices
Free
Read public summaries at no cost · first AI summary includes one translation and 10 chat questions
Read 2 Oct 2026 · summio.org
Max
Higher usage limits · same supported reading workflow as Premium
Read 2 Oct 2026 · summio.org
Premium
Higher usage than free · summaries from eligible books, YouTube videos, articles, and text-based PDFs
Read 2 Oct 2026 · summio.org
On the record
- Audience
- Summio describes itself as built for readers who want to understand main ideas and decide which source deserves closer reading.summio.org · read 2 Oct 2026
- Chat
- Chat uses the summary and available source context, and shows citations when available.summio.org · read 2 Oct 2026
- Data deletion
- After account deletion, personal data is removed within 30 days except where retention is required by law.summio.org · read 2 Oct 2026
- Eligibility limits
- The service requires usable transcript context for public YouTube videos and accessible text for compatible articles and PDFs.summio.org · read 2 Oct 2026
- Integrations and providers
- The Privacy Policy names Supabase, Cloudflare, Firebase, Stripe, Apple, OpenAI, Google Gemini, OneSignal, AppsFlyer, Meta, and TikTok among service providers.summio.org · read 2 Oct 2026
- Languages
- The site describes Summio as available in 27 languages.summio.org · read 2 Oct 2026
- Learning
- Companion prepares recall questions and memory practice from summary ideas, and can use questions the reader asked in chat.summio.org · read 2 Oct 2026
- PDF limits
- PDF uploads are limited to text-based files up to 50 MB and 1,000 pages; image-only scans need OCR before upload.summio.org · read 2 Oct 2026
- Privacy
- Summio says it does not sell personal information and does not use personal content to train Summio-owned models.summio.org · read 2 Oct 2026
- Purpose
- Summio turns eligible catalogue books, public YouTube videos, compatible public articles, and text-based PDFs into structured summaries.summio.org · read 2 Oct 2026
- Security
- Summio says it uses TLS/SSL encryption in transit, encryption at rest, Firebase authentication, and row-level database security.summio.org · read 2 Oct 2026
- Summary depth
- Readers can choose short, medium, or detailed summary depth.summio.org · read 2 Oct 2026
- Support
- The About page points users to FAQs and direct contact channels for the Summio team.summio.org · read 2 Oct 2026
