Capacities
by Capacities Labs GmbH
#3 in Notes & second brainBest value
A clean, object-based notes app where an AI assistant chats with your notes. The core app stays free, and Pro is $9.99 a month.
What’s good
- Core app is free forever
- Chat with your notes and media
- All AI workflows and models on Pro
Heads-up
- AI has a monthly usage budget
- Heavy AI use needs a Plus add-on
The details
- Best for
- Connected notes for researchers, writers and students
- Price
- From $9.99/mo (Pro, billed monthly)
- Free plan
- Core app free; AI needs paid Pro
- Skill level
- Any level
- Made by
- Capacities Labs GmbH
- Website
- capacities.io
- Price checked
- Sep 30, 2026
Where it ranks
- #3Notes & second brainBest value
Compare with similar picks
| Rank in Notes & second brain | #1 | #2 | #3 | #4 |
|---|---|---|---|---|
| Price | From $4.99/mo | From $12/mo | From $9.99/mo | From $8/mo |
| Free plan | 100 notebooks with up to 50 sources each | Free forever; AI is a limited trial | Core app free; AI needs paid Pro | 30 AI messages and 100 notes a month |
| Best for | Students and researchers working from their own notes, PDFs and links | Notes, docs and projects in one flexible workspace | Connected notes for researchers, writers and students | Notes, tasks and calendar in one AI assistant |
| Skill level | Any level | Any level | Any level | Beginner-friendly |
| Try it free | Try it free | Try it free | Try it free |
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