# Capacities vs ThinkerNotes

Capacities records 339,396 monthly visits with +5.7% month-over-month growth and Freemium, Paid pricing. ThinkerNotes records 758 monthly visits with -72.3% growth and Freemium pricing.

| Metric | [Capacities](https://openaitools.app/tool/capacities) | [ThinkerNotes](https://openaitools.app/tool/thinkernotes) |
| :--- | :--- | :--- |
| Website URL | https://capacities.io | https://thinkernotes.com |
| Categories | AI Note Taker, AI Assistant, AI Knowledge Management | AI Notes Generator, AI Knowledge Base, AI Writing Assistants |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 339,396 | 758 |
| MoM Growth Rate | +5.7% | -72.3% |
| Primary Market | United States | United States |
| Direct Visits | 249,603 | 297 |
| Review Score | 4.5 | 4.1 |
| Saved Count | 1 | 10 |
| 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)

## ThinkerNotes

ThinkerNotes is built around a plain observation: people who run businesses learn constantly and remember almost none of it. You can name the book you read last quarter but not the idea you took from it, so you end up paying for the same lesson twice. The app's premise is that the problem is not memory but structure — what you learn has no obvious place to go, and no mechanism to bring it back.\n\nThe workflow is deliberately minimal. When you learn something, you write one line in your own words; there is no title to think of, no folder to pick and nothing to decide. Later you come back, cut the note down to the point you actually want to make, and link it to the older notes it relates to. From then on ThinkerNotes surfaces it automatically whenever it is relevant, rather than waiting for you to remember to search. Subjects group everything about one topic — pricing, hiring, launches — with the book, the podcast and what customers told you side by side, and a note that ends in a question stays open until you write the answer, creating a trail of follow-ups.\n\nA distinctive feature is the connector for AI assistants. Via MCP, ThinkerNotes plugs into Claude, ChatGPT and other compatible assistants so they answer from your accumulated conclusions instead of generic training data. The connection is intentionally read-only: the assistant can search your notes but can never add to or alter them. Pricing is freemium — the first 100 notes are free, and Pro at $12.99 per month removes the limit and adds semantic search, Kindle highlight import, custom branding for shared note images, and support for a tool built by a single independent developer.

**Pricing & Plans:** Freemium. The first 100 notes are free, no credit card required. Pro is $12.99 per month and adds unlimited notes, semantic search, Kindle import and custom branding. You can upgrade from inside the app.

- **Frictionless capture:** One sentence, however it comes out, is the whole commitment — no title to invent, no folder to pick and nothing to decide before you write.
- **Linked insights and follow-ups:** ThinkerNotes shows older notes that relate to what you are writing and you link the ones that belong, building trails from first hunch to decision.
- **Contextual resurfacing:** Instead of waiting for you to remember to look, it puts the note you wrote last year next to this week's problem so you build on your own thinking.
- **Works inside Claude and ChatGPT (MCP):** Connect once from your assistant's settings and it answers from what you actually concluded rather than the internet's average opinion — read-only, so it can never edit your notes.
- **Open questions and subjects:** End a note with a question and it stays open until you write the note that answers it, so open questions and subjects stay visible.
- **Shareable note cards (Pro branding):** Open a note, pick a style, and get a shareable image for LinkedIn, X or Instagram; Pro adds your own colors, logo and saved templates.

**Strengths:** Extremely low-effort capture: one sentence is the whole commitment; Resurfaces relevant past notes without you having to remember to look; Connects to Claude and ChatGPT via MCP as a read-only knowledge source; Draws on the Zettelkasten method without the decades of manual filing

**Limitations:** Small, single-developer product with limited ecosystem integrations; Deliberately does no writing or content generation for you, which some users may want; Semantic search, Kindle import and branding are Pro-only; Requires the upstream assistant to support MCP for the connector

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

## Frequently Asked Questions

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

Capacities has 339,396 monthly visits, while ThinkerNotes has 758. 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%; ThinkerNotes has -72.3%.

### 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. ThinkerNotes: Freemium. Freemium. The first 100 notes are free, no credit card required. Pro is $12.99 per month and adds unlimited notes, semantic search, Kindle import and custom branding. You can upgrade from inside the app.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Studocu](https://openaitools.app/tool/studocu-global) | 39,297,122 | +1.1% | Freemium | Share and access study materials worldwide — with AI study tools built in | [.md](https://openaitools.app/tool/studocu-global.md) |
| 2 | [Knowt](https://openaitools.app/tool/knowt-com) | 4,183,953 | +5.4% | Free | Free AI flashcard and study tools for students | [.md](https://openaitools.app/tool/knowt-com.md) |
| 3 | [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) |
| 4 | [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) |
| 5 | [Saner.AI](https://openaitools.app/tool/saner-ai-beta-version) | 184,423 | -0.6% | Freemium | ADHD-friendly AI assistant for notes, email and tasks | [.md](https://openaitools.app/tool/saner-ai-beta-version.md) |
| 6 | [Heptabase](https://openaitools.app/tool/heptabase) | 179,905 | -5.8% | Free Trial, Paid | Offers superior visual whiteboarding and spatial structuring for complex research, but lacks Capacities' typed object database system. | [.md](https://openaitools.app/tool/heptabase.md) |
| 7 | [Fabric](https://openaitools.app/tool/fabric) | 168,987 | +2.7% | Freemium | Your files, notes and meetings in one drive — with an AI that knows all of it. | [.md](https://openaitools.app/tool/fabric.md) |
| 8 | [Mem.ai](https://openaitools.app/tool/mem-ai) | 137,457 | -1.2% | Freemium, Paid | An AI notes app that organizes your knowledge for you | [.md](https://openaitools.app/tool/mem-ai.md) |
| 9 | [NoteLyn AI](https://openaitools.app/tool/notelyn-ai) | 111,347 | +23.5% | Freemium | Turn lectures, meetings, PDFs and videos into structured notes, flashcards and quizzes | [.md](https://openaitools.app/tool/notelyn-ai.md) |
| 10 | [AutoNotes AI](https://openaitools.app/tool/autonotes-ai) | 64,897 | +24.5% | Freemium, Free Trial, Paid, Contact for Pricing | AI progress notes and clinical documentation for therapists | [.md](https://openaitools.app/tool/autonotes-ai.md) |

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

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