Pricing. Neither publishes prices. Workday sells deployment as separate fixed-fee Launch packages; ADP sells API Central consulting hours for a fee.
Capabilities. Both cover payroll, HR, time and talent. Workday adds workforce planning, HR service delivery and reorganization modeling; Workforce Now adds benefits enrollment with eligibility guidance and continuous payroll calculations with variance detection.
Integrations. Workday connects payroll to native and partner systems in 180+ countries. ADP Workforce Now offers an API with paid consulting through ADP API Central. Neither publishes an integration count.
Fit and support. Workday targets mid-market and enterprise organizations; ADP Workforce Now targets employers with more than 50 workers, with a Client Success Executive for enterprise clients.
Security. Workday states SOC 2 Type 2, ISO 27001, GDPR and HIPAA. ADP names no certification on the Workforce Now pages we reviewed.