Manage Your Plan, Add-ons, and AI Credits

Plans unlock feature families, while some repertories and books are separate editions or add-ons. Check the exact entitlement named by a locked feature.

Before you start

Free includes seven classical repertories, 21 classic Materia Medica books, semantic repertory search, and three new cases plus three new analyses per month. Pro adds the AI toolkit, unlimited cases and analyses, and other Pro features. Premium sources depend on their edition or add-on.

Review and manage access

1. Open Shop.
2. Compare the available plans, editions, add-ons, and AI credit packs.
3. Match the exact locked source or feature to its product description — a book sold both on its own and inside a collection has a card for each, so compare the two before buying.
4. Complete a purchase only through Similia's Stripe checkout.
5. Open Plan & billing in Settings.
6. Use the billing portal to manage payment methods, invoices, or subscriptions.
7. Open the AI credit control to see the current balance and usage history.
8. Review the credit estimate before running an AI task.

What you should see

The account summary distinguishes the base plan, active add-ons, and AI credits instead of treating them as one entitlement.

If something looks wrong

• If paid access has not appeared, refresh after checkout and confirm the same signed-in account was used.
• If a source remains locked, compare its required add-on with the active-add-on list. A single-book purchase unlocks only that book; the collection it belongs to unlocks all of them.
• If an AI task is blocked, check both Pro access and the separate credit balance.