Plans and billing
Ultrathink has two plans: Free and Pro. This page explains what each one gives you, how the free trial works and how to manage your subscription in Settings > Billing.
The two plans
| Free | Pro | |
|---|---|---|
| Price | £0 | £9.99 a month |
| Entries | Unlimited | Unlimited |
| Capture from the web app, browser extension and desktop app | Yes | Yes |
| AI titles, summaries, topics, people and relationships | Yes, with your own OpenAI API key | Yes, included |
| Tasks, kanban board and calendar | Yes | Yes |
| AI search | No | Yes |
| Work plan | No | Yes |
| Entities settings: entity names and colours, work and personal hints, status workflows and AI prompts | No | Yes |
| API and MCP server access | No | Yes |
| Overdue filter on due dates | No | Yes |
| Due date borders on kanban cards | No | Yes |
Free: bring your own OpenAI key
On the Free plan, the AI that titles, summarises and files your entries runs on your own OpenAI API key. You add it once in Settings > Integrations, and you pay OpenAI for what you use. Without a key your entries are still saved, but the AI cannot process them.
See Device keys, integrations and downloads for how to add the key.
Pro: nothing to set up
On Pro, the AI is included. You do not need an OpenAI key, and Settings > Integrations shows Managed next to OpenAI.
Your plan belongs to your organisation
Every account belongs to an organisation, and the plan is set for the organisation. If you signed up on your own, the organisation is just you. If you joined with an invite code, you share the organisation’s plan with everyone in it.
Only an organisation’s Owner or an Admin can start a trial, upgrade or change the subscription. See Account and organisation for roles.
The free trial
You can try Pro free for 30 days. The trial does not start on its own: you start it when you are ready, and you do not need a card.
Start the trial
- Go to Settings > Billing.
- Under Your plan, click Start free trial (30 days).
Your plan changes to Pro straight away, with a Trial, N days left label. The help line under it says the date the trial ends.
When the trial ends
- If you added a payment method, Pro carries on and you are charged £9.99 a month.
- If you did not, your organisation goes back to the Free plan by itself. Nothing is deleted.
Each organisation can have one free trial.
Upgrading to Pro
During a trial:
- Go to Settings > Billing.
- Click Add payment method.
- Enter your card details on the secure Stripe checkout page.
After a trial, or if you have already used it:
- Go to Settings > Billing.
- Click Upgrade to Pro.
- Complete the Stripe checkout.
Payments are handled by Stripe. Ultrathink never sees or stores your card details.
Managing your subscription
On Pro, Settings > Billing shows the date your subscription renews, and a Manage subscription button.
Click Manage subscription to open the Stripe billing portal. There you can:
- change your card;
- see and download your invoices;
- cancel your subscription.
Cancelling
Cancel from the Stripe billing portal. Pro stays on until the end of the period you have paid for, then your organisation moves to the Free plan. Your entries stay where they are.
On Free, the Pro-only parts stop working: AI search, the work plan, API and MCP access, and the Pro settings. To keep the AI processing new entries, add your own OpenAI key in Settings > Integrations.
Payment problems
If a payment fails, Settings > Billing shows a Payment past due notice. Click Manage subscription and update your payment method to keep using Pro.
The plan list in Settings
Settings > Billing also lists the two plans side by side under Plans, with Current plan against yours. The table at the top of this page is the full, up-to-date list of what each plan includes.