
An applicant tracking system can cost nothing — a bare free tier with a handful of open jobs — or several thousand dollars a month for an enterprise suite billed per recruiter seat. Most small and mid-size teams land somewhere between $100 and $600 a month once they add the modules they actually need, and the number on the pricing page almost never matches what shows up on the invoice. That's because most ATS vendors charge on more than one axis at once.
So if you're trying to budget for one, the honest answer is: it depends which of four pricing levers the vendor pulls, and how many they pull at the same time.
For a small team hiring a handful of roles at a time, figure roughly $100 to $400 a month for a standalone ATS with core tracking, a careers page and basic reporting. Add sourcing, AI matching or phone screening and the range climbs, usually $200 to $600 a month, because those tend to get sold as a higher tier rather than a toggle you flip on. Enterprise suites built for hundreds of open roles and multiple hiring teams price differently — often by seat, by job slot, or both — and can run into the thousands once a company adds more than a few recruiter logins.
The variable that moves the number most isn't features. It's scale: how many open roles you run at once, how many people need a login, how many candidates pass through in a month. A system that looks cheap at three open roles can double in price the moment you open a tenth.
Four charging models show up again and again, often stacked together:

On top of the base charge, watch for line items billed separately: job-board posting credits, background-check integrations, e-signature for offer letters, premium support. A quote that sounds like one price on a sales call can arrive as three or four line items on the first invoice. Before you sign anything, make the vendor write out every charge against a real 90-day hiring plan — three roles, two hiring managers, one offer — instead of trusting the sticker price on the homepage.
Some are, within limits. Free ATS tiers exist, usually capped at one or two open jobs, a small number of users, and basic tracking with no sourcing or scoring. Fine for a company hiring one role a year. The moment you need more than a couple of simultaneous openings, a public apply page that actually gets maintained, or any reporting beyond a candidate list, the free tier runs out and you're looking at a paid plan anyway.
The more useful question isn't “is it free,” it's “what does free leave out.” Free tiers almost never include candidate sourcing, AI-assisted screening, or more than a handful of pipeline stages — the parts of hiring that actually eat time. A modern ATS that also sources and scores candidates is a different product category from a free tracker, and the price gap reflects that, not just a longer feature list.
Broadly, ATS products fall into three groups:

Which category fits depends less on company size than on how candidates reach you. If most candidates apply on their own, a tracking-only tool is enough. If you need to go find people who haven't applied, a tracking-only ATS still leaves that work undone — the gap a traditional ATS never closes on its own.
The right comparison for ATS cost isn't “what's cheapest.” It's what the system replaces. A $200-a-month tool that also sources and scores candidates can replace a sourcer's time and a chunk of a recruiter's screening hours. A $50-a-month tracker that only logs applicants still leaves someone building a boolean search by hand and sorting resumes manually. Price per seat or per job is a budgeting detail. Price per hour saved on sourcing and first-round screening is the number that actually matters once you're running more than one open role.

HiringAgent prices as a flat monthly plan rather than per seat: $197, $397 or $597 a month with unlimited users, covering sourcing, AI match scoring, AI phone screens and the pipeline itself, with candidate volume and screen counts scaling by tier rather than headcount. Full detail on what's in each tier is on the pricing page.
Most ATS tools charge by one or more of: number of users with a login, number of open jobs, number of hires made, or a flat tier with a usage cap. Add-ons like job-board posting, background checks and e-signature are often billed separately from the base plan.
Some ATS products offer a free tier, but it's usually capped at one or two open jobs and basic tracking with no sourcing, scoring or advanced reporting. Teams hiring for more than a role or two at a time tend to outgrow it fast.
Standalone tracking tools for small teams generally run $100 to $400 a month. Tools that add sourcing or AI screening run higher, often $200 to $600 a month. Enterprise suites price by seat and contract and can run well into the thousands for larger teams.