Onchain Suite bills monthly. You either pick a plan with included allowances, or run on Pay as you go and pay for exactly what you use from a prepaid balance. There’s no free tier and no annual discount, annual is simply twelve months up front.
Plans
Each plan carries a monthly email allowance and a monthly in-app allowance on top of one bundled price. A dedicated sending IP is provisioned automatically once an account sustains 100,000 sends a month; below that, sending runs on a managed warm pool.
Extra seats are sold à la carte at $10/month each, above the seats your tier includes. A purchased seat raises only the seat limit, not your allowances, so it’s the cheap way to add one teammate without moving up a plan. See Team members. Buying a contact count between two tiers is supported, and the price scales smoothly between them. You get the capabilities of the tier below your contact count and the capacity you paid for. For example, 11,000 contacts costs less than full Growth and carries Launch’s features until you cross 25,000.
ONS+ list protection
ONS+ verifies email addresses at import or capture time, clearing typos, dead mailboxes, and spam traps before they hurt your sending reputation. It’s available on every plan, metered at $10 per 1,000 addresses submitted, and a large first-stage check runs in-house at no charge, so most addresses never reach the paid stage.
Each paid plan includes a monthly ONS+ allowance equal to its contact cap, so verifying a list the size of your audience is covered rather than overage: 2,500 on Launch, 25,000 on Growth, and 75,000 on Pro. Buying more contact capacity raises the ONS+ allowance with it.
Renewals and receipts
A subscription renews monthly. If a card is on file, it’s charged automatically on the due date; otherwise you’ll get a hosted invoice to pay. Reminder emails go out in the days before renewal, and a lapsed plan falls back to pay-as-you-go rather than cutting off.
Every paid invoice generates a branded PDF and emails a receipt to the workspace owner. Invoices are available in the billing area to view or download.
Managing billing
Billing is owner-only. From the billing area you can change plan, buy contact capacity, top up a pay-as-you-go balance, manage payment methods (card or crypto), and read live usage against every allowance: contacts, messages, credits, seats, automations, and API keys. 
