Review your plan and billing

Erlin has five plans: Free, Starter, Standard, Pro and Enterprise. Settings > Billing shows which one you are on, how much of it you have used, your invoices and your credit history.

All six platforms are ChatGPT, Perplexity, Gemini, Claude, Google AI Overview and Google AI Mode. Credits explains what each action costs.

Starter, Standard and Pro offer a 7-day trial: click Start 7-Day Trial on a plan card on the pricing page, or Buy Subscription to start the plan straight away. Enterprise is set up by the Erlin team: click Book a Call on its pricing card, or email help@erlin.ai.

Review the current plan

The plan card shows your plan name and one meter for each limit your plan sets, such as Websites and Keyword lookups. Limits your plan does not cap, such as Prompts and Content words, are listed underneath after "No limit on your plan". The Credits meter shows credits used against your allowance, with a caption such as "1,240 left".

Use the Refresh plan and credits button if you have just made a change and the card has not updated. If the plan fails to load, Erlin says so with a retry button: it never shows a failed load as an empty plan. Teammates see the plan card with "Managed by your account owner".

To change plans, click Upgrade on the plan card. Erlin opens the pricing page, where the Plans tab shows every plan with a Monthly or Yearly billing switch.

Review payment details

Under Payment, Payment method and plan has a Manage in Stripe button. It opens the Stripe customer portal, where you change your card, plan or billing details, or cancel. When Stripe has a card on file, Erlin shows its brand, last four digits and expiry, and the email that receives receipts.

Enterprise accounts see "Your plan is billed by invoice" with a Contact us button. Accounts with no paid plan see See plans.

Find invoices and usage

The Invoices table lists each payment with its invoice number, date, amount and status (Paid, or Due). Use the icons on a row to open the invoice or download its PDF. Before your first payment it reads "No invoices yet".

Credit history lists every change to your credit balance: date, what it was for, type (Used, Refund, Assigned, Granted or Bought), credits added or spent, and the balance after. OpenRouter key usage lists the calls paid through your own OpenRouter key, on plans that include bring your own key.

Credit top-ups

Top-ups add credits on top of your plan, and they never expire. On the pricing page, open the Add-ons tab and click Buy Credits on a pack. The tab needs an active paid plan: without one you cannot open it. Erlin spends your plan credits first, then your top-up credits.

Investigate a discrepancy

Note the action, time and billing record. Contact Support if the account does not match a completed payment. Refresh the plan card before buying again: a page that has not refreshed is not a failed purchase.