OmniSchema is operations software for UK facilities, maintenance, property and field service businesses. It brings jobs, planned preventive maintenance (PPM), compliance certificates, customers and invoices into one system that is ready on the first day. Engineers use the phone app to start and close jobs, answer safety checks, take photos and record their time, and it keeps working with no signal. Certificates such as gas safety, electrical and fire risk are tracked against the requirements you set, with expiry reminders, remedial actions and an audit pack. Invoices are made from the job, paid by card or bank transfer, and sent to Xero or QuickBooks. Add People (HR), Purchasing, CRM and Payroll with the same sign-in, and build your own pages, lists and dashboards in Studio. Free plan for 3 users.