Acunetix vs Burp Suite
These two get compared constantly and they are built for different people. Acunetix is an automated DAST platform: point it at applications, schedule scans, get a managed queue of findings. Burp Suite Professional is a toolkit that makes a skilled tester faster — a proxy, a scanner and a set of manual tools driven by someone who knows what they are looking for. Choosing between them is mostly a question of whether a person is going to drive it.
Key Facts
- →Burp Suite Professional is published at $499 per user per year; Burp Suite Enterprise (DAST) is quote-based.
- →Acunetix, part of the Invicti group, is quote-based and scoped by number of targets.
- →Acunetix is designed for scheduled scanning at scale; Burp Professional is a desktop tool for hands-on work.
- →Burp Enterprise is the pipeline product; Professional is not designed for CI/CD.
- →Neither tests authorisation between users, because that depends on your application's rules rather than a signature.
Quick Comparison
| Aspect | Acunetix | Burp Suite |
|---|---|---|
| Primary user | A team scheduling scansTie | A tester driving the toolTie |
| Published price | No: quoted by target count | Yes: $499 per user / year (Professional)✓ Advantage |
| Automated crawling and scanning | Core strength✓ Advantage | Present, secondary to manual work |
| Manual testing tools | Minimal | The point of the product✓ Advantage |
| Scanning many applications | Built for it✓ Advantage | Enterprise Edition, quoted separately |
| Extensibility | Limited | BApp Store plus custom extensions✓ Advantage |
| CI/CD integration | Supported✓ Advantage | Enterprise only |
| Triage overhead | Managed queue, dedup, integrations✓ Advantage | You own the output |
| Depth on one hard target | Bounded by the scanner | Bounded by the tester✓ Advantage |
| Authorisation and business logic | No | Only if the tester tests it manually✓ Advantage |
What is Acunetix?
Automated web application security scanner from the Invicti group. Crawls and scans applications and APIs for injection, misconfiguration and known component vulnerabilities, with scheduling, a managed findings queue, integrations into issue trackers and reporting aimed at compliance.
What is Burp Suite?
The web security toolkit most testers use. Professional gives one user an intercepting proxy, an automated scanner, Repeater, Intruder and the extension ecosystem; Enterprise Edition is the separate, quote-based product for scheduled and pipeline scanning across many sites.
The Question Is Who Drives
Acunetix is a machine you point at things. Its value is throughput and management: many applications, scheduled, with findings deduplicated and routed. If nobody on your team is going to sit with a proxy open, that management layer is what you are buying, and it is worth real money.
Burp Professional is a machine somebody drives. In the hands of a tester it goes deeper than any scanner because the tester decides what is interesting: replay this request with a different identifier, tamper this parameter, follow that redirect. In nobody's hands it does very little, because it is a desktop application waiting for input.
That is the entire decision. Teams with hands-on security capability buy Burp and rarely regret it at $499. Teams without it buy something that runs itself.
Costs That Are Easy to Get Wrong
Burp Professional is per named user, so a five-person team is $2,495 a year, and there is no middle tier before Enterprise. Teams routinely budget one seat and then share it, which is both a licence problem and a practical one.
Acunetix is scoped by targets, so an untidy inventory inflates the quote. Count what you actually need scanned, retire what nothing calls, and get the target definition in writing before comparing numbers.
The cost nobody budgets in either case is triage. Acunetix reduces it with dedup and workflow; Burp hands it to the tester who found it, which is efficient precisely because the same person understands it.
What Both Leave Untested
Neither product can decide that a request is a breach rather than a feature. Burp will happily replay a request with someone else's invoice ID — but only if a human thinks to, and only for as long as they keep doing it. Acunetix will not, because no signature describes your authorisation model.
For a multi-tenant application that is the whole risk. Testing it means holding two accounts in two tenants and attempting every enumerable identifier and export path, systematically, on every release. That is either patient human work or an agent doing what the human would, and it is the gap both of these tools leave open.
When to Choose Each
Choose Acunetix when…
- →You have many applications and nobody dedicated to testing them.
- →You want scheduled scanning with managed triage and issue-tracker integration.
- →Compliance reporting out of the box matters to you.
- →You need scanning in a pipeline without buying a second product.
Choose Burp Suite when…
- →You have testers, or developers who will act like testers.
- →You need depth on one or two complex applications.
- →You want to extend the tool and script your own checks.
- →You value a published price and per-seat simplicity.
Can You Use Both?
Very common in mature teams, and not wasteful: Acunetix or another platform for breadth across the portfolio, Burp on the desks of whoever investigates what the platform reports and tests what it cannot. The overlap is the automated scan; the value is in the two things either side of it.
Verdict
If a person will drive it, Burp Suite Professional at $499 a user is the least controversial purchase in application security. If nothing will be driven and applications need covering anyway, Acunetix is built for that and Burp Professional will disappoint you. Neither answers authorisation or business logic, so if your product is multi-tenant, treat that as a separate purchase rather than assuming the scanner reaches it.
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