At a glance
| scrollandlearn | Readwise | Glasp | |
|---|---|---|---|
| What it is | A private web app that writes lessons from saved posts | A highlight library with a daily review, plus the Reader app | A social web highlighter with AI summaries and a public profile |
| Where your material comes from | Links to public posts on 15+ platforms | Highlights synced from Kindle, Instapaper, Apple Books and more; Reader saves articles, newsletters and RSS feeds | Highlights and notes you make on web pages, YouTube and Kindle books |
| YouTube | A lesson written from the video's captions | Reader lets you highlight the transcript | The transcript beside the player, with timestamps you can click |
| Who writes it up | The app writes the lesson | You choose the highlights | You choose the highlights; AI summaries help |
| Bringing it back | Today's quiz, graded, on a spaced schedule | Daily Review by email and in the app | Daily emails of random Kindle highlights |
| Privacy | Private; nobody sees your library | Private | Public by default; private highlights on Pro |
| Price | 10 lessons free, no card; Starter $19.99 a month for 100 saves | Lite $5.59 a month billed yearly; Full $9.99 billed yearly or $12.99 monthly | Free plan; Pro $12.50 a month billed yearly or $15 monthly |
scrollandlearn: for the saves a highlighter misses
Highlighters need text to highlight. A TikTok or a Reel where someone explains a method has no page to mark, and a YouTube video you saved to watch later has given you nothing to highlight yet. Those saves sit outside both tools, which is often where most of the learning on a phone happens.
scrollandlearn starts from the link instead. It writes a lesson from what is said in a TikTok, Reel or Facebook video, from a YouTube video's captions, or from the text of a post on X, Threads, Reddit, Bluesky or LinkedIn, usually within a minute. A Spotify or Apple Podcasts episode is transcribed from start to end, up to 6 hours within your plan's minutes, and a long one comes back as one lesson in sections, with nothing to mark. Here is the lesson a YouTube video about prompting becomes.
Give the model a role
Tell the model who it is and what the answer should look like before you give it the task.
Key points
- Specify the output shape, length, and audience explicitly rather than hoping.
- Provide one worked example when the format matters more than the content.
- Name the constraints, including what the answer should not do.
- Ask it to flag its own uncertainty instead of filling gaps silently.
Try this
Add a role and an output format to the prompt you use most.
Remember this
Say who it is, then what you want back.
In the quiz
What two things should a prompt say before the task itself?
Filed under AI prompts
The question at the bottom is what Today's quiz asks when the lesson is due. Forgot brings a lesson back tomorrow and starts it over, Kind of in 4 days, Knew it in 14 days, then 35, 88 and 219 days, then a year.
Two ways of keeping what you read
Readwise and Glasp agree on the starting point: you read something and mark the lines worth keeping. They part ways on what happens next. Readwise gathers highlights from wherever you already read, mostly books and saved articles, and its job is to make sure you see them again. Glasp lives in the browser while you read, and its job is to make highlighting fast and to let others see what you found.
That makes Readwise the better fit for a reader who finishes books on a Kindle and wants the best lines resurfaced over months. Glasp suits someone who reads dozens of web pages a week, often in public, and treats the highlights as a reading log others can follow.
What Readwise offers
- Books. Highlights sync from Kindle, Apple Books, Instapaper and more without you exporting anything.
- Review. The Daily Review by email and in the app works on spaced repetition, so a highlight comes back at widening intervals.
- Reading in one place. Reader, included with Full, saves articles, newsletters and RSS feeds and lets you highlight them where you read.
- Getting highlights out. Full exports to Notion, Obsidian and other tools, and adds tags and notes.
- Privacy without paying extra. Your highlight library is yours alone on every plan.
What Glasp offers
- The open web, for free. Highlighting web pages, YouTube and Kindle costs nothing, and Glasp says its free plan is not a trial.
- Highlighting while you read. Four colors and a note tied to the exact sentence, put back on the page when you return to it.
- YouTube in detail. The transcript sits beside the player, its timestamps move the video, and lines can be highlighted.
- A public reading life. A profile, followers and other readers' highlights on the same page make reading social.
- Export on every plan. Markdown, HTML, CSV, JSON and a daily Notion sync come without upgrading.
How to choose
Count where your learning happens in a normal week. If most of it turns out to be short videos, podcast episodes and posts you saved on your phone, neither highlighter will catch it, and that is the gap scrollandlearn was built for. Many people keep one highlighter for reading and scrollandlearn for what they scroll.
If it is mostly books and a few long articles, Readwise pays for itself by keeping those highlights alive. If it is mostly web pages and YouTube, and you like sharing what you read, Glasp costs nothing to start and fits the browser you already use.
Frequently asked questions
- Is Glasp cheaper than Readwise?
- To start, yes. As of 22 October 2026 Glasp has a free plan, and Pro costs $12.50 a month billed yearly or $15 monthly. Readwise Lite costs $5.59 a month billed yearly, and Full, which includes Reader, $9.99 billed yearly or $12.99 monthly.
- Which is better for Kindle highlights?
- Readwise. It syncs Kindle highlights along with Apple Books and Instapaper and brings them back in a daily review on spaced repetition. Glasp imports Kindle highlights too and emails a daily selection of random ones.
- Are my highlights private?
- In Readwise, yes. In Glasp, highlights are public by default and private highlights come with Pro. scrollandlearn keeps every lesson private; there is no profile and no public link.
- Where does scrollandlearn fit?
- Beside either of them, for the posts and videos you save on your phone. It writes a lesson from each link and asks about it in a daily quiz. Its price as of 22 October 2026: On scrollandlearn your first 10 lessons are free with no card, then Starter is $19.99 a month for 100 saves. You can cancel any time.
