What is PSA software?
PSA stands for professional services automation. It is software that runs the chain a services firm sells: the quote, the project, the hours people log against it, who is booked in the coming weeks, and the invoice at the end. The point is that those steps share one set of data, so the hours on a project are the same hours on the invoice and in the margin you report. If you are still working out whether you need one, start with [what PSA software is](/glossary/professional-services-automation/).
What is the difference between PSA software and project management software?
Project management software answers what needs doing and by when. PSA answers what the work is worth: whether the project is inside budget, who is available to staff the next one, which hours are billable, and what you can invoice. A project tool tracks tasks; PSA connects those tasks to money and capacity.
What does PSA software cost?
For a team of 10 where 3 people track time and 1 sends invoices: FlowQi is $100 a month, Productive Essential $120, Scoro Time-billing $170, Teamwork.com Accelerate $249.90 billed yearly, and Function Point Standardize $580 plus an onboarding fee. Accelo and Kantata quote per company. Add invoicing at Productive and it becomes $290. Prices checked in September 2026.
Which PSA platform is best for a small agency?
Below five people, the seat minimums decide it. Scoro starts at five users and Productive at three, with contractors counted as seats. FlowQi has no minimum and a free plan for the whole team, with modules charged per person who uses them. Teamwork.com is free up to 5 users and 5 projects if billing from logged hours is all you need.
Which PSA tools publish their pricing?
FlowQi, Productive, Scoro, Teamwork.com and Function Point publish prices. Accelo and Kantata do not, and both quote per company based on your size and needs. Productive also stops showing a Professional price above 50 users.
Do I need PSA software if I already have a project tool and an accountant?
Not always. If your hours, your budgets and your invoices already line up without anyone retyping them, you have what PSA gives you. The reason firms switch is usually that they cannot see whether a project is still profitable until after it is finished, or that they cannot tell who is free next month without asking around.
Is there free PSA software?
There is no full PSA platform that is free. FlowQi Basic is free for unlimited users with CRM, projects and tasks, and you pay per person only for time tracking or invoicing. Teamwork.com has a free plan for up to 5 users and 5 projects. Everything else on this list is a trial of 14 days or a sales conversation.