SumAI FAQ : Questions, answered.

SumAI is an AI summarizer app for iPhone and iPad. It turns YouTube videos, web articles and PDFs into structured summaries in seconds, then lets you go deeper with Ask AI chat, key moments, mind maps, quizzes, flashcards and full transcripts. Its full App Store name is "SumAI: YouTube & PDF Summary".

Copy a YouTube or web link, or pick a PDF. Paste it into SumAI, choose a summary style and a language, and the AI reads the whole source for you: the transcript of a video, or the text of an article or document. You get a structured summary with the key points, and from there you can ask questions, open the mind map, or test yourself with a quiz or flashcards.

SumAI runs on iPhone with iOS 16.0 or later and on iPad with iPadOS 16.0 or later. The App Store also offers it on Mac computers with Apple silicon (macOS 13.0 or later) and on Apple Vision Pro (visionOS 1.0 or later), where it runs as the iPad app.

No. SumAI is available on the App Store for iPhone and iPad. There is no Android app, web app or browser extension.

SumAI is made for students who turn lectures, tutorials and readings into study guides, for professionals catching up on talks, interviews, reports and articles, and for curious people who want the key takeaways of a long video or document fast. See the pages for students, professionals and lifelong learners.

SumAI 2.0, released in October 2026, added summaries of web pages and PDFs (earlier versions summarized YouTube videos only), Ask AI chat with tappable timestamps, mind maps, the Chapters summary style, key moments, full transcripts, PDF and Markdown export, favorites and tags, sharing to SumAI from YouTube or Safari, and optional Sign in with Apple.

No. SumAI is an independent app. It is not affiliated with, sponsored by or endorsed by YouTube or Google.

SumAI is free to download from the App Store. It also offers an optional Premium subscription as an in-app purchase, billed weekly or yearly. In the US App Store, Weekly Premium costs $2.99 and Yearly Premium costs $29.99 (checked in November 2026). Prices differ by country, and the App Store always shows your local price before you buy.

In the US App Store, SumAI Weekly Premium is $2.99 per week and Yearly Premium is $29.99 per year. In the UK App Store the same plans are £2.99 and £29.99. These prices were checked in November 2026; Apple sets prices per country and they can change.

SumAI subscriptions are billed and managed by Apple. On your iPhone or iPad, open Settings, tap your name, tap Subscriptions, choose SumAI and tap Cancel Subscription. You keep Premium until the end of the period you already paid for.

SumAI can summarize YouTube videos, Shorts and live streams that have captions or auto-generated subtitles, because it works from the video’s transcript. A video with no captions at all, such as a music-only clip, cannot be summarized.

No. SumAI reads the video’s transcript and writes the summary in seconds, so you can decide whether the video is worth your time before pressing play. If a point matters, tap its timestamp to jump straight to that part.

Yes. SumAI summarizes regular YouTube videos, YouTube Shorts and live streams, as long as the video has captions or auto-generated subtitles.

Yes. SumAI lists chapters and key moments with timestamps. Tap a time to jump to that part of the video. Answers from Ask AI include timestamps you can tap as well.

Yes. SumAI shows the full transcript with timestamps, and you can copy it. This works for any video that has captions or auto-generated subtitles.

In the YouTube app, tap Share on the video and choose SumAI from the share sheet. You can also copy the link and paste it into SumAI. The same share option works for web pages in Safari.

Yes. Pick a PDF in SumAI and it summarizes the document in the style and language you choose. The PDF needs selectable text: a scan that is only an image of a page, with no text layer, cannot be read.

Yes. Paste the link to a web article into SumAI, or share the page from Safari, and SumAI summarizes the text of the article.

Yes. Ask AI works with documents as well as videos. Open a summarized PDF or article, type a question, and SumAI answers from the text of that source.

SumAI offers five summary styles. TL;DR is one paragraph with just the point. Standard gives the key ideas in a few minutes. Detailed keeps the supporting detail. Study Guide organizes concepts, definitions and takeaways. Chapters goes section by section, which suits long videos.

Yes. With Ask AI you chat with any video or document you have summarized. Answers come from the source itself, and for videos they include timestamps you can tap to jump to the moment the answer comes from.

Yes. SumAI generates a quiz and a set of flashcards from every summary, so you can test yourself on a video, article or PDF right after reading it.

The mind map shows the whole topic of a video or document at a glance: the main idea in the middle, with branches for each subtopic. You can zoom in, tap a branch, and share the map as an image.

AI summaries are a fast way to understand a source, but any AI summary can miss nuance or get a detail wrong. SumAI makes checking easy: key moments and Ask AI answers carry timestamps you can tap to hear the original, and the full transcript is always one tap away. For anything important, verify against the source.

SumAI writes summaries in more than 60 languages, whatever language the source is in. The app interface itself is available in English, French, German, Italian, Japanese, Portuguese, Spanish and Turkish.

Yes. You choose the language of the summary separately from the language of the source. For example, you can paste a Japanese or German video and read the summary in English, or the other way round.

Yes. The Listen feature reads a summary aloud, and you can set the speed to 0.75x, 1x, 1.25x, 1.5x or 2x.

Yes. SumAI exports summaries as PDF or Markdown, and you can also share or copy them. Mind maps can be shared as images.

Your summaries are kept in the SumAI library. You can search it, mark favorites and add tags to group summaries by subject or project.

No. Signing in is optional. If you choose to use Sign in with Apple, SumAI keeps your library safe across your devices.

According to SumAI’s App Store privacy label, the app may collect diagnostics (crash data, performance data and other diagnostic data) for analytics, and this data is not linked to your identity. The full details are in the Privacy Policy.

Email net29apps@gmail.com. Tell us what you were trying to summarize and what happened, and include the link if you can. The support page covers the most common fixes.

The two usual causes are a YouTube video without captions or auto-generated subtitles, and a PDF without selectable text (for example a scanned page saved as an image). Check that the video offers captions (a CC button, or Show transcript in its description on YouTube), and that the PDF contains real text rather than pictures of pages, then try again.