OnPay vs Greenhouse

OnPay

OnPay is a full-service payroll and HR platform designed for small and mid-size businesses. It offers unlimited payroll runs, automatic tax filing, and built-in HR tools at an affordable flat rate. OnPay is consistently rated as one of the best value payroll solutions for small businesses and supports a wide range of industries including restaurants, farms, and nonprofits.

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Greenhouse

Greenhouse is a leading applicant tracking system built for structured, data-driven hiring. It helps companies design consistent interview processes, reduce bias, and make better hiring decisions. Greenhouse is the ATS of choice for mid to large companies with high-volume or technical hiring needs.

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Pros

• ✓Excellent value — flat monthly pricing with no per-run fees
• ✓Supports multiple pay schedules and unlimited payroll runs
• ✓Strong industry-specific features for restaurants, farms, and nonprofits
• ✓US-based customer support included on all plans

Cons

• ✗US-only — no international payroll support
• ✗Mobile app is less polished than competitors
• ✗Limited advanced HR features compared to full HRIS platforms

Pros

• ✓Best-in-class structured hiring tools with scorecards and interview kits
• ✓Extensive integration ecosystem with 300+ HR and productivity tools
• ✓Powerful reporting and hiring analytics
• ✓Strong DEI tools to reduce bias in hiring

Cons

• ✗Expensive for small companies with limited hiring volume
• ✗Complex to set up and requires dedicated admin resources
• ✗No built-in HRIS — requires integration with a separate HR system

Best For

Small businesses wanting affordable, full-service payroll with no hidden fees

Best For

Mid to large companies with high-volume hiring