Manage your subscription under Settings → Billing. Payment is handled by Stripe, which hosts the secure checkout and customer portal — Ariyes never stores your card details.
From the upgrade flow you can pick a plan, set your seat count, and choose monthly or annual billing (annual is discounted). Because pricing is per seat, you pay for the people on your team and get the platform's modules included. Larger teams get automatic volume discounts as seat count grows.
Plans include a free trial with no credit card required to start — you only add payment details when you decide to continue.
Use the Stripe customer portal (opened from Billing) to update your card, review your subscription, and manage payment. Changes to seats or plan are prorated.