Rebuilt in 2026Glasp for iOS & Android

Read, highlight &
recall, anywhere

A native Reader for articles, PDFs and YouTube — highlight them, summarize them, chat with them, and keep every highlight in sync with the extension and the web.

Download on the App StoreGet it on Google Play
Free to downloadiPhone · iPad · AndroidSyncs with the extension & web
Highlighting an article in the Glasp mobile app Reader
A complete rewrite for iOS & Android

Built native, made for reading on the go

Faster, calmer, and built around your highlights: everything the extension captures, plus everything a phone does best.

Native Reader

A calm place to read & highlight

Save any link into Glasp and read it distraction-free. Select a sentence, tap a color, and it's in your library, with a note while the thought is fresh.

How to do great work

The first step is to decide what to work on. The work you choose needs to have three qualities. It has to be something you have a natural aptitude for, that you have a deep interest in, and that offers scope to do great work.

YouTube

YouTube Summary on the go

Share a video to Glasp and get the key points before it finishes buffering — then highlight the transcript, with timestamps that seek the video when you tap them.

Summary
  • Pick work with aptitude, interest & scope
  • Work on your own projects
  • Let curiosity set the direction
Chat

Ask the page a question

Chat with any article, PDF or video you open — and it's the same conversation you'd see in the extension, because it's keyed to the page, not the device.

PDFs

PDFs you can actually mark up

Upload a PDF or open one you saved, then highlight and annotate it with your thumb. The highlights land in the same library as everything else.

AI memory

Chat with everything you've saved

Ask a question and get answers grounded in your own highlights and notes, not the whole internet. Your AI memory rides along.

Feed

The channels and writers you follow

Follow YouTube channels, newsletters and blogs, and read them in one chronological feed — no algorithm deciding your morning.

Library & imports

Your Kindle library, in your pocket

Deep Work42 highlights
Thinking, Fast and Slow67 highlights

Import from Kindle, Readwise, Snipd, Instapaper, Medium, Hypothesis and Raindrop.io — without leaving the app.

Widgets

Highlights on your home screen

Three widgets — a highlight for your daily review, your bookmarks, and your Feed, which also goes on the iOS Lock Screen — so what you saved finds you without you opening anything.

Safari extension

Highlight right in mobile Safari

On iOS, enable the Glasp extension in Safari and highlight webpages in the browser, just like on desktop — text and images.

Share sheet

Save from any app, in two taps

Found something in your browser, a newsletter, or YouTube? Share it to Glasp and it lands in your library. Read it in the Reader or summarize it right away.

paulgraham.com/greatwork.html

Save to Glasp
Copy link
  • Suggested highlights

    Open a page's Highlight tab and ask for passages worth keeping — what other readers marked, or AI-picked when there are not enough of them.

  • The crowd on the page

    See what everyone else highlighted on the page you're reading, without leaving the Reader.

  • Seven languages

    The app speaks English, Japanese, Spanish, Korean, Portuguese, French and Vietnamese — and writes your summaries in the language you pick.

One account, every device

Starts in your browser, continues on your phone

Highlight with the Glasp extension at your desk, and it's on your phone before you stand up. Save something on the go, and it's waiting in your library when you're back.

  • Highlights, notes, and tags sync automatically across devices
  • Your AI memory learns from everything, wherever you saved it
  • Export to Notion, Obsidian, and more from the web app
paulgraham.com

The first step is to decide what to work on. The work you choose needs to have three qualities.

Reader

The first step is to decide what to work on. The work you choose needs to have three qualities.

The same highlight, everywhere, synced automatically

"I love Glasp! I use it every time I read online articles. Highlighting with Glasp enforces me to actually read rather than scan through an article. I retain so much more info and can easily revisit my previously read articles to recall details and notes I've made."

Olive

Olive

Product Designer

"I've researched every highlighting tool from Liner and Hypothesis to Instapaper and Pocket, and Glasp is the best hands-down. First, it creates a whole category of its own with social highlighting. This is important because it helps learners get recognized for finding amazing highlights, and it helps them connect with others who..."

Michael Simmons

Michael Simmons

Bestselling Author

"I used Instapaper but ended up hating it and stopped. There just wasn't a tool for me to continue using until Glasp. I was hooked immediately for the ease of use (highlight directly on the article web page), organized feed, and learning from others' highlights and notes. It makes sticking to learning something so easy and you..."

Puppy Tsai

Puppy Tsai

Product Manager

"I love the way Glasp is always there while I'm reading articles on the web ready to help me remember key phrases or interesting ideas. The interface looks like Tumblr meets Google Reader. It's always full of fresh and interesting things that struck someone else as valuable. What a wonderful place to visit!"

Jason Shellen

Jason Shellen

Founder & Advisor

"Glasp drastically reduces the time for note-taking for me. I needed a common platform to keep references and notes, where everyone could seamlessly collaborate. In any situation that requires collaboration, oftentimes, it acts as a references repository for our knowledge base. It allows me to keep my notes easily accessible to..."

Rudram

Rudram

Product Manager

"Glasp is such a meaningful product! It helps me focus and think deeply on the content that resonates with me the most, and share my thoughts with friends and colleagues effortlessly by simply highlighting the content that I love. I’m constantly inspired by everyone’s highlights, shared articles, and resources from Glasp’s..."

Snow Huo

Snow Huo

Startup Founder

"As someone who has been following the GTD, Zettelkasten, PKM, Second Brain, zettelkasten ways of working, Glasp helped me shift from following to doing.  It acts as a forcing function, motivating me to think through what stood out, why it stood out, and to categorize it according to what I'd be interested in learning more about...."

Moe

Moe

Designer & Content Writer

"Glasp has been a lifesaver! It helps me quickly refer to important parts of articles I need to come back to for assignments as well as work. With it, I’ve been more organized and productive! I also often discover useful articles and resources that friends have been reading."

Ananya

Ananya

Content Creator

"Glasp is a habit now. It helps me build an archive of the most interesting ideas I come across online. It's a wonderful tool that makes me read with more attention and allows me to discover great insights from all kinds of interesting users."

Thiény Konaté

Thiény Konaté

Agency Founder

"Glasp makes it easy for me to remember what I read and watch on a daily basis. The app is always ready to let me highlight the important passages and create notes. Exporting the higlights is as easy as using a one-click button to paste it to my Obsidian vault. Glasp not only has these features but it also functions as a..."

Nic Yap

Nic Yap

Technical Writer

Answers

Frequently asked questions

Is the Glasp mobile app free?

Yes. The app is free to download on iOS and Android, and highlighting, organizing, and syncing are all free. Glasp Pro adds unlimited private highlights for people who want to keep insights to themselves.

Which devices does the Glasp app support?

Glasp runs on iPhone, iPad, and Android phones and tablets. Your account also works in any desktop browser with the Glasp extension, and everything stays in sync.

What's new in the rebuilt app?

The app was rebuilt from the ground up in 2026 and has kept shipping since: a native Reader for articles, PDFs and YouTube; AI summaries and a Chat tab on any page you open; suggested highlights and the crowd's highlights inside the Reader; a Feed for the YouTube channels, newsletters and blogs you follow; home-screen and Lock Screen widgets; imports from Kindle, Readwise, Snipd, Instapaper, Medium, Hypothesis and Raindrop.io; and a Safari extension for highlighting in the mobile browser on iOS.

Can I read and highlight PDFs on my phone?

Yes. Upload a PDF or open one you already saved, and read, highlight and annotate it in the app's Reader. PDF highlights sync with glasp.co and the browser extension, and you can summarize or chat with the document from the same screen.

Can I chat with an article or video in the app?

Yes. Any page you open in the Reader has a Chat action, and YouTube videos get a Chat tab next to Transcript and Summary. The conversation is keyed to the page rather than the device, so it is the same thread you would see in the browser extension or on the web.

What languages does the app support?

The interface is available in English, Japanese, Spanish, Korean, Portuguese (Brazil), French and Vietnamese, and you can separately choose the language your AI summaries are written in.

Do highlights sync between my phone and the browser extension?

Yes. Sign in with the same account and your highlights, notes, and tags sync automatically between the mobile app, the browser extension, and glasp.co.

Can I highlight webpages on my phone?

Yes. Share any link into Glasp and highlight it in the built-in Reader. On iOS you can also enable the Glasp extension in mobile Safari and highlight pages directly in the browser.

Can I see my Kindle highlights in the app?

Yes, and you can run the import from the app itself — Add, then Import Highlights. Your Kindle books and highlights live in your library on mobile, and the home-screen widget resurfaces them for a daily review. The same screen imports from Readwise, Snipd, Instapaper, Medium, Hypothesis and Raindrop.io.

Can I chat with my highlights on mobile?

Yes. The app includes your AI memory: ask questions and get answers grounded in your own highlights and notes, wherever you are.

How do I contact Glasp support?

Email hi [at] glasp.co, or reach out on X (@_Glasp). The team reads everything.

More questions? Read the mobile app guide or email hi [at] glasp.co.

Take your ideas with you

Download the Glasp app for iOS and Android and pick up right where you left off. It's free.

Download on the App StoreGet it on Google Play

iPhone · iPad · Android · or start in your browser