OnPay vs GanttPRO
A head-to-head comparison to help you pick the right tool
Last updated: April 30, 2026
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.
GanttPRO
GanttPRO is a dedicated online Gantt chart tool built for project planning and scheduling. It offers an intuitive drag-and-drop interface for creating professional project timelines quickly.
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 Gantt chart experience
- ✓Very easy to learn
- ✓Good resource management
- ✓Professional exports for client presentations
- ✓Affordable pricing
Cons
- ✗Narrower feature set than full PM platforms
- ✗Not suited for agile or Kanban-focused teams
- ✗Limited reporting
- ✗Less suitable for software teams
OnPay vs GanttPRO: Side by Side
| Factor | OnPay | GanttPRO |
|---|---|---|
| User Rating | N/A | N/A |
| Category | Payroll Software | Project Management |
| Pricing Model | Paid | Paid |
| Starting Price | $40/mo + $6/person | Contact for pricing |
| Best For | Small businesses wanting affordable, full-service payroll with no hidden fees | Project managers and teams needing a dedicated, easy-to-use Gantt chart tool for planning and scheduling |
| Our Pick | — | — |
OnPay Features
- ✓Unlimited payroll runs
- ✓automatic tax filing
- ✓direct deposit
- ✓employee self-service
- ✓HR tools
- ✓benefits administration
- ✓PTO management
- ✓integrations
GanttPRO Features
- ✓Gantt charts
- ✓task dependencies
- ✓resource management
- ✓time tracking
- ✓project templates
- ✓team collaboration
Pricing Comparison
Which Should You Choose?
Choose OnPay if...
- →Small businesses wanting affordable, full-service payroll with no hidden fees
Choose GanttPRO if...
- →Project managers and teams needing a dedicated, easy-to-use Gantt chart tool for planning and scheduling
Our Take
Choose OnPay if small businesses wanting affordable, full-service payroll with no hidden fees. Choose GanttPRO if project managers and teams needing a dedicated, easy-to-use gantt chart tool for planning and scheduling.
Best For
Small businesses wanting affordable, full-service payroll with no hidden fees
Best For
Project managers and teams needing a dedicated, easy-to-use Gantt chart tool for planning and scheduling
Also Consider
If neither OnPay nor GanttPRO is the right fit, Multiplier is worth evaluating.
Multiplier
Startups and SMBs hiring internationally on a budget
From $40/contractor/mo
Frequently Asked Questions
What is the difference between OnPay and GanttPRO?
OnPay is best for small businesses wanting affordable, full-service payroll with no hidden fees. GanttPRO is best for project managers and teams needing a dedicated, easy-to-use gantt chart tool for planning and scheduling.
Which is better, OnPay or GanttPRO?
Choose OnPay if small businesses wanting affordable, full-service payroll with no hidden fees. Choose GanttPRO if project managers and teams needing a dedicated, easy-to-use gantt chart tool for planning and scheduling.
How much does OnPay cost?
OnPay starts at $40/mo + $6/person. Pricing model: Paid.
How much does GanttPRO cost?
Visit GanttPRO website for current pricing.
Who should use OnPay?
Small businesses wanting affordable, full-service payroll with no hidden fees
Who should use GanttPRO?
Project managers and teams needing a dedicated, easy-to-use Gantt chart tool for planning and scheduling