Capacities review

Capacities is a personal knowledge tool that replaces Notion's pages and databases with typed objects. You create object types such as Book, Person, Meeting or Project, give them properties, and link them as you write, so a meeting note can point to the people and projects it mentions. The free Basic plan is generous: unlimited spaces, objects and blocks, sync across all devices, unlimited custom object types, offline support, full import and export and full-text search. Media uploads are limited to 5 GB total and then 100 MB a month. Capacities Pro costs $9.99 a month and adds an AI assistant, whiteboards, task management, smart queries, calendar integration, Readwise and Kindle import, version history and a public API. A Plus AI add-on covers heavier AI use. Sharing on the free plan is view-only and there is no team plan, so Capacities is for individuals rather than company wikis. We compared documented features and published prices.

Who it is for

people building a personal second brain

Price

Free Basic plan; Pro $9.99 a month; Believer from $12.49 a month.

Capacities Pro For professionals. $9.99 /month USD
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Free Basic plan with unlimited spaces, objects and blocks and sync across all devices
• Unlimited custom object types for things like books, people and meetings
• Pro adds an AI assistant, whiteboards, task management, smart queries and calendar integration
• Save content from WhatsApp, Telegram, Twitter or by email
• Offline support and full import and export

Strengths and weaknesses

• Strength: Capacities says its core product is and will remain free
• Strength: Free plan syncs across devices, which Obsidian charges for
• Strength: Pro has a free trial with no credit card
• Weakness: Free plan sharing is view-only
• Weakness: Free media uploads are capped at 5 GB, then 100 MB a month
• Weakness: Built for individuals; no team workspace plan is listed on the pricing page

Key facts

• Free plan: Yes, unlimited spaces, objects and blocks
• Pro: $9.99 a month
• Yearly discount: 16% on yearly billing
• Free media uploads: 5 GB total, then 100 MB a month

Where it ranks

Capacities is No. 5 in our Best Notion Alternatives verdict.