Trillion vs Capacities
An object-based notes app where people, books, ideas and meetings are typed objects.
See the difference
Scroll the table sideways to see both products.
| Trillion | Capacities | |
|---|---|---|
| What it does | Trillion has no AI of its own. | An object-based notes app where people, books, ideas and meetings are typed objects. |
| Published plan price | See current plans | Pro: $9.99/month (shown as yearly equivalent; page data lists $11.99/month monthly) |
What each does
Trillion
Trillion has no AI of its own. You connect the AI apps you already use, such as ChatGPT, Claude and Codex, and each one reads and adds to the same pursuits, decisions, files, lists, messages and tools in your Trillion. What you tell one AI, the others can read.
Capacities
An object-based notes app where people, books, ideas and meetings are typed objects.
Where Capacities is stronger
Unlimited objects and custom object types on the free plan
AI assistant, calendar integration and public API on Pro
Offline use, with capture from WhatsApp, Telegram and email
Which fits your work?
Pick Trillion if
You want a shared memory product for several AI apps you already use.
Pick Capacities if
You want a structured personal knowledge base with typed notes.
How this was checked
Reviewed 2026-10-12. Prices and capabilities can change; check the source before choosing.
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