Summio
Summio turns eligible books, public YouTube videos, compatible public articles, and text-based PDFs into structured summaries.
What Summio is
Summio turns eligible books, public YouTube videos, compatible public articles, and text-based PDFs into structured summaries. Readers can choose short, medium, or detailed summaries, then chat using the summary and available source context; citations appear when available. Its Companion prepares 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 availability in 27 languages. The free plan provides public summaries at no cost; a first AI summary includes one translation and 10 chat questions. Premium and Max offer higher usage, while their prices, billing periods, and any trial terms are shown at checkout. PDF uploads must be text-based and within 50 MB and 1,000 pages; image-only scans need OCR before upload. Public YouTube videos need usable transcript context, and articles and PDFs need accessible text. Summio says it encrypts data in transit and at rest, does not sell personal information, and does not use personal content to train Summio-owned models.
Good
- Summaries offer short, medium, and detailed depths.
- Chat can show citations when available.
- Companion creates recall questions and memory practice.
- Free plan includes public summaries at no cost.
- Available on iOS and the web.
Watch out
- PDF uploads must be text-based and within stated limits.
- Image-only PDF scans need OCR before upload.
- YouTube videos require usable transcript context.
- Premium and Max prices are shown at checkout.
Who it suits
Summio suits readers who want to grasp a source’s main ideas and decide whether to read or watch it more closely. Its Companion may also help readers practice recall from summaries.
Verdict
Summio combines structured summaries with source-context chat and recall practice. Its usefulness depends on eligible sources having accessible text or transcript context, and paid-plan terms require checking at checkout.
Plans and prices
From Summio's own pricing page, checked 2 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Read public summaries at no cost · first AI summary includes one translation and 10 chat questions |
| Max | Priced on request | Higher usage limits · same supported reading workflow as Premium · Price, billing period, and any trial terms are shown at checkout |
| Premium | Priced on request | Higher usage than free · summaries from eligible books, YouTube videos, articles, and text-based PDFs · Price, billing period, and any trial terms are shown at checkout |
The facts
Each one read from Summio's own pages, with the date it was checked.
What it does
- Audience
- Summio describes itself as built for readers who want to understand main ideas and decide which source deserves closer reading.checked 2 Oct 2026
- Chat
- Chat uses the summary and available source context, and shows citations when available.checked 2 Oct 2026
- Data deletion
- After account deletion, personal data is removed within 30 days except where retention is required by law.checked 2 Oct 2026
- Eligibility limits
- The service requires usable transcript context for public YouTube videos and accessible text for compatible articles and PDFs.checked 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.checked 2 Oct 2026
- Languages
- The site describes Summio as available in 27 languages.checked 2 Oct 2026
- Learning
- Companion prepares recall questions and memory practice from summary ideas, and can use questions the reader asked in chat.checked 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.checked 2 Oct 2026
- Privacy
- Summio says it does not sell personal information and does not use personal content to train Summio-owned models.checked 2 Oct 2026
- Purpose
- Summio turns eligible catalogue books, public YouTube videos, compatible public articles, and text-based PDFs into structured summaries.checked 2 Oct 2026
- Security
- Summio says it uses TLS/SSL encryption in transit, encryption at rest, Firebase authentication, and row-level database security.checked 2 Oct 2026
- Summary depth
- Readers can choose short, medium, or detailed summary depth.checked 2 Oct 2026
- Support
- The About page points users to FAQs and direct contact channels for the Summio team.checked 2 Oct 2026
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