# Capacities vs Glasp

Capacities records 339,396 monthly visits with +5.7% month-over-month growth and Freemium, Paid pricing. Glasp records 889,564 monthly visits with -14.1% growth and Freemium pricing.

| Metric | [Capacities](https://openaitools.app/tool/capacities) | [Glasp](https://openaitools.app/tool/glasp) |
| :--- | :--- | :--- |
| Website URL | https://capacities.io | https://glasp.co |
| Categories | AI Note Taker, AI Assistant, AI Knowledge Management | AI Research Tool, AI Agent, AI Summarizer, AI Youtube Summary |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 339,396 | 889,564 |
| MoM Growth Rate | +5.7% | -14.1% |
| Primary Market | United States | United States |
| Direct Visits | 249,603 | 400,603 |
| Review Score | 4.5 | 4.2 |
| Saved Count | 1 | 12 |
| Supported Platforms | Website | Website |

## Capacities

Capacities starts from a simple observation: the way most tools organize information — nested folders and files — does not match how people actually think. The app replaces that hierarchy with objects. A person is an object, a book is an object, a project is an object, and each one has its own structure and properties. Because everything can link to anything, your notes build a network rather than a filing cabinet.

Writing starts in a daily note that acts as an inbox, so there is no pressure to file things immediately. From there you create the object types you actually need and link them as you go. Backlinks show every connection to a note at a glance, and a Related Content feature surfaces places where you wrote about something but never made the link explicit — connections you had already made, found automatically.

Capacities runs on web, macOS, Windows, Linux, iOS and Android, and works offline with synchronisation across devices. The core note-taking product is free, with paid Pro and Believer tiers that add AI features, whiteboards, task management, smart queries, calendar integration, media analysis and version history. The team is small, fully remote and independently funded.

**Pricing & Plans:** Freemium. Capacities Basic is free forever with unlimited spaces, objects and blocks. Capacities Pro is $9.99/month and adds AI features, whiteboards, tasks, smart queries and calendar integration; Capacities Believer starts at $12.49/month and adds beta access to new features. A Plus AI add-on increases the monthly AI budget. Yearly billing is discounted.

- **Everything is an object:** Model people, books, projects and meetings as typed objects with their own properties, instead of forcing them into folders.
- **Backlinks and related content:** See every link to a note at a glance, and let Capacities surface unlinked mentions where you already wrote about the same thing.
- **Daily notes as an inbox:** Capture thoughts without deciding where they belong first, then link and refine them later.
- **AI assistant and media analysis:** On paid plans, an AI assistant works alongside your notes, and image, PDF and weblink analysis turns outside material into usable content.
- **Works across all your devices:** Native apps for web, Mac, Windows, Linux, iOS and Android with synchronisation and offline support.

**Strengths:** Object-based model removes the friction of constant filing decisions; Related Content surfaces connections you never explicitly linked; Free tier is genuinely usable, with full import and export; Native apps on all major platforms, including Linux

**Limitations:** Some of the most useful features — AI, tasks, calendar — sit behind the Pro subscription; Not a Markdown-first, plugin-extensible tool, which limits fine-grained customization; AI usage is budget-based, so heavy AI users need the Plus add-on

[Profile (Markdown)](https://openaitools.app/tool/capacities.md)

## Glasp

Glasp started from a simple observation: most people highlight things they never look at again. Instead of trapping highlights inside one app, Glasp makes them social. Install the extension, highlight a paragraph on any site or a line in a YouTube transcript, and it lands in your Glasp profile where you can add notes and tags. Because highlights are public by default unless you make them private, a feed of what like-minded people are reading and marking emerges — you can follow other users, see what resonates, and discover sources you would not have found on your own.

Your library becomes the raw material for AI features. Glasp can summarize a long article, a PDF or a YouTube video so you can decide whether it deserves reading, and it can organize what you have already saved into themes. The standout feature is the AI clone: by training on your own accumulated highlights and notes, it produces something that answers in the shape of your interests and reading history. There is also a digital-legacy angle, letting you hand your accumulated knowledge to someone else.

Glasp is free to start, with paid tiers for heavier use and greater AI capacity. Its real niche is learners, researchers, students and content curators who treat annotation as a public, collaborative practice rather than a private bookmark folder — and who want their saved material to do work for them later instead of gathering dust.

**Pricing & Plans:** Freemium. A free tier covers the core highlighting, saving and sharing features with limited AI usage; paid plans add higher AI limits and additional capacity. Check glasp.co for current tier pricing, as it is not published in our listing data.

- **Web and YouTube highlighting:** Mark up passages on any website or lines in a YouTube transcript from a browser extension, then keep them in one searchable library.
- **Social learning feed:** Highlights are shared publicly by default, so you can follow other users, react to their picks and discover sources through people with similar interests.
- **AI summarization:** Generate summaries of long articles, PDFs and YouTube videos to judge relevance fast and to digest what you have already saved.
- **Your own AI clone:** Trained on your accumulated highlights and notes, the AI clone answers in the shape of your reading history and areas of interest.
- **Notes, tags and Kindle import:** Add your own commentary and tags to every highlight, and bring in Kindle highlights so your reading lives in one place.

**Strengths:** Turns throwaway highlighting into a genuinely reusable, searchable library; The social feed surfaces sources through people rather than an opaque algorithm; AI summarization and the AI clone are built on your own saved material, not generic content; Works across web pages, YouTube, PDFs and Kindle imports in one place

**Limitations:** Public-by-default sharing is not for everyone; private lives behind a toggle you have to remember; The AI clone only becomes useful after you have accumulated a real body of highlights; Free-tier AI usage is limited, so heavy summarization pushes you to a paid plan

[Profile (Markdown)](https://openaitools.app/tool/glasp.md)

## Frequently Asked Questions

### How do Capacities and Glasp compare in monthly traffic?

Capacities has 339,396 monthly visits, while Glasp has 889,564. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Capacities has a month-over-month growth rate of +5.7%; Glasp has -14.1%.

### How does pricing compare?

Capacities: Freemium, Paid. Freemium. Capacities Basic is free forever with unlimited spaces, objects and blocks. Capacities Pro is $9.99/month and adds AI features, whiteboards, tasks, smart queries and calendar integration; Capacities Believer starts at $12.49/month and adds beta access to new features. A Plus AI add-on increases the monthly AI budget. Yearly billing is discounted. Glasp: Freemium. Freemium. A free tier covers the core highlighting, saving and sharing features with limited AI usage; paid plans add higher AI limits and additional capacity. Check glasp.co for current tier pricing, as it is not published in our listing data.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Notion](https://openaitools.app/tool/t) | 173,441,670 | +0.1% | Freemium | The AI workspace where teams and agents get work done together | [.md](https://openaitools.app/tool/t.md) |
| 2 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 3 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | Excels at deep scientific literature reading and analysis, whereas Glasp targets general web and video content curation. | [.md](https://openaitools.app/tool/scispace.md) |
| 4 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | Offers a broader multi-model sidebar for quick page summarization, but lacks Glasp's community-driven public highlighting and curation. | [.md](https://openaitools.app/tool/sider.md) |
| 5 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | Provides faster multi-tab AI assistance and article summaries, but lacks dedicated social knowledge curation and note archiving features. | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) |
| 6 | [Craft](https://openaitools.app/tool/craft-do) | 703,417 | +8.9% | Freemium | Delivers a cleaner document editing experience with beautiful typography, but lacks network graph views and typed object modeling. | [.md](https://openaitools.app/tool/craft-do.md) |
| 7 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Delivers powerful web automation and page summarization, but features a steeper learning curve than Glasp's streamlined extension. | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 8 | [Noteey](https://openaitools.app/tool/noteey) | 230,694 | -1.6% | Freemium | Offline visual note-taking on an infinite canvas | [.md](https://openaitools.app/tool/noteey.md) |
| 9 | [Scholarcy](https://openaitools.app/tool/scholarcy) | 195,058 | +4.6% | Freemium | Converts academic papers into structured summary flashcards, but lacks Glasp's broad web article and YouTube highlighting capabilities. | [.md](https://openaitools.app/tool/scholarcy.md) |
| 10 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Provides open-source YouTube and webpage summarization directly in search results, but lacks Glasp's long-term knowledge management. | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |

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Source: https://openaitools.app/compare/capacities-vs-glasp

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