Billing

What the Billing page shows

Checkout, card changes and invoices run through Stripe, so CADABRA never handles your card details.

• The plan card: your plan name, the price line, and either "Renews {date}" or "Cancels {date}". A badge appears only when there is something to say, and only ever reads Trial, Free month or Past due.
• The button beside it reads Change or cancel plan on an active subscription, Upgrade plan on Free, and Manage billing otherwise. All three open the Stripe portal.
• Auto-renew, a switch on the plan card.
• Payment method, showing the brand and last four digits, with Add card or Update card.
• Extra usage, covered below.
• Invoices: date, description, status and amount, straight from Stripe.

Enterprise billed by invoice shows "Billed by invoice" instead of a price, and has no portal button.

Changing or cancelling a plan

Switching plan asks first, in the form "Switch to the Professional plan?" over "Your bill is prorated for the rest of this period."

A switch takes effect the moment you confirm it, up or down. Stripe prorates the difference against your next invoice, your billing period and its renewal date are unchanged, and the new allowance applies to the period you are already in. Credits you have already spent this period count against it, so an upgrade adds the difference rather than starting you at zero.

Student carries a condition the others do not: requires an academic email in a supported region. It is licensed for non-commercial coursework. Professional is the commercial plan for one engineer.

Cancelling stops the renewal rather than cutting you off. You keep the plan for the period you have paid for, and the plan card changes from "Renews" to "Cancels" on the same date.

Past due shows "Payment failed. Update your card to keep your subscription." Incomplete shows "Your subscription is incomplete. Finish payment to activate it." In both, fix the card through the portal button.

A lapsed subscription is treated as Free, so every mode except Ask locks: plans and limits.

Extra usage

Extra usage is how you keep working past the monthly allowance without changing plan. It is available on Student, Standard, Professional and Enterprise, and there are two controls plus a purchase.

Allow extra usage

A switch, off by default. It is disabled until there is a card on file, and says so: "Add a card first." While it is off, nothing extra can be charged to you, and the over-limit notice on the Overview page says exactly that and offers Set up extra usage instead of a purchase button.

Budget this period

A whole-dollar cap for the current period, from 0 to 10,000. It is disabled until the switch above is on. 0 means no limit, and the row then reads "No limit. $X spent this period." With a cap set, the row reads "$X of $Y used", and a purchase that would pass the cap is refused with how much is left.

Buying

Buy usage opens "Buy extra usage". The rate is stated at the top of the dialog as a price per 1M credits, followed by "Expires at the end of your billing period." Enter a dollar amount and the dialog estimates what it adds to your allowance, then Charge card & add usage takes it from the card on file.

The minimum is $10 and the maximum is $10,000 in one purchase. The same $10,000 is the ceiling on the period budget.

Bought credits belong to the billing period you bought them in and expire with it. They do not change your subscription, your plan or your renewal.

Stopping

There are two different endings, and only one of them is reversible.

• Cancel. The renewal stops, you keep the plan to the end of the period, and your account, history and invoices stay. Turning it back on is a plan change.
• Delete. Account, Danger zone, Delete account, confirmed with your password. It cancels the subscription, detaches payment history in Stripe and removes the account record. It cannot be undone. The full flow is on your account.