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.

Can Summio turn summaries into audio or a podcast?

Yes. Every summary can be played as natural audio narration, chapter by chapter — listen on a commute, a walk, or while doing chores, just like a podcast.

Does Summio help you remember what you read?

Yes. The learning companion uses spaced recall and gentle reminders to bring the key ideas back before you forget them, so a finished summary actually sticks.

AIツール · YouTube要約

AI YouTube要約・iPhoneで無料

SummioのAI YouTube要約は、どんな動画でも、ショート／ミディアム／ロング／詳細の好きな深さで読める編集テキストに整えます。iPhoneで無料、27言語対応。要約のあとは全文書き起こしを相手にチャットでき、引用を探したり、特定の場面を聞き返したりできます。

使い方

ステップ 01
Summioを開いて「YouTube」を選ぶ
ホームタブの「作成」を押し、ソースに「YouTube動画」を選びます。
ステップ 02
URLを貼り付ける
例：https://www.youtube.com/watch?v=…
ステップ 03
深さを選んで読み始める
ショート／ミディアム／ロング／詳細から選択。行をタップすると文字起こしとチャットできます。

得られるもの

講義・ポッドキャスト・トーク・インタビュー・プレイリストに対応
タイムスタンプを保持。動画の該当箇所にすぐ戻れる
要約だけでなく文字起こし全体とチャット可能

Summioを選ぶ理由

ソースの幅、対応言語、価格で見るSummioと単機能ツールの比較。
項目	Summio	単機能ツール
ソースの幅	書籍・YouTube・記事・PDFを1つのアプリで	いずれか一種類のみ
対応言語	27言語	英語中心、数言語のみ
価格	Premium 年39.99 $（月4.99 $）	まちまち。多くは高め

料金

Summio Premium

$4.99／月 · $39.99／年

年額プランで33％お得

iPhoneでSummioを入手 →

iOS 18+対応 · 27言語 · クレジットカード不要で開始

よくある質問

動画の長さに上限はありますか？

実質的にはありません。数時間の動画も処理できます。非常に長い講義は処理に1〜2分かかることがあります。

プレイリストにも対応していますか？

はい。プレイリストのURLを貼り付けると、Summioが各動画を個別に要約し、相互リンクのあるコレクションを作ります。

字幕がない動画はどうなりますか？

YouTubeの字幕がない場合、Summioは音声から自動で文字起こしを生成します。精度は音質に依存します。

こんなものも要約できます

書籍 · 記事 · PDF