# Quarters > Custom property management software, built around each operator, for long > and short stays. AI is what makes building one operator's own system fast > and affordable. Every system starts from a complete platform: reservations, > contracts signed inside the product, invoices, keys and an operations board > for check-ins, check-outs and cleaning. Built in Amsterdam. No commission on > bookings. Quarters is sold at three levels: Standard, the platform as it comes, self-serve at a published price; Custom, a system built around one operator for a fixed price agreed first; and Dedicated, an installation of the operator's own. Custom work is done by people, who use AI to build faster and check every change. Nothing configures itself. It prices by the month or by the night. There is NO connection to Airbnb, Booking.com or Vrbo today, no online payment by guests, and no nightly dynamic pricing. Standard is priced per active unit per month, ex VAT, billed annually: - Starter: €10 per unit, up to 20 units - Growth: €7 per unit, 21 – 50 units - Enterprise: custom, 51+ units Monthly billing is up to +20%. There is no minimum spend, no booking commission and no per-user charge. A 30-day trial requires no payment card. Custom and Dedicated are priced per operator. ## Product - [How it works](https://www.quarters.live/how-it-works): one call, a fixed price, and what is made the operator's own - [Overview](https://www.quarters.live/product): the standard platform - [AI assistant](https://www.quarters.live/product#ai): reads and writes with the user's own permissions, an approval gate before every change, undo afterwards - [Reservations & calendar](https://www.quarters.live/product#reservations): live availability, exclusive check-out, statuses that ask before they email anyone - [Tenancy contracts](https://www.quarters.live/product#contracts): the operator's own lease template, browser signing, full evidence trail - [Operations](https://www.quarters.live/product#operations): check-in/out and cleaning board, derived from reservations rather than stored ## Buying - [Pricing](https://www.quarters.live/pricing) - [Compare](https://www.quarters.live/compare): a spreadsheet, an off-the-shelf PMS, agency-built software and Quarters, with the cases where each is the better choice - [Switching](https://www.quarters.live/compare#switching): what comes across and what does not - [From a spreadsheet](https://www.quarters.live/solutions/spreadsheets): the operator's spreadsheet as the brief for their system ## Trust - [Security and data](https://www.quarters.live/security): states plainly that there is no SOC 2 or ISO 27001 yet - [Sub-processors](https://www.quarters.live/legal/sub-processors) - [Data processing agreement](https://www.quarters.live/legal/dpa)