Rapid7 InsightAppSec is a commercial dynamic application security testing solution by Rapid7. Start Left® Security DAST is a commercial dynamic application security testing solution by Start Left® Security. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Teams wanting quick setup and a clear dashboard
It is on this list because Attack Replay lets developers check a finding and its fix themselves, which keeps security out of the middle of every ticket. It fits teams of any size that need compliance reports, and the on-premises engine helps if some apps sit on closed networks. It is built on Rapid7's Insight platform, so ask what you gain if you do not use that platform today.
From Best DAST Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
DAST product for automated web app and API vulnerability scanning and testing
DAST tool that tests running apps for runtime vulnerabilities via attack simulation.
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Rapid7 InsightAppSec fits if you need both cloud and on-premises options.
Start Left® Security DAST fits if you want a cloud product.
Common questions when comparing Rapid7 InsightAppSec vs Start Left® Security DAST for dynamic application security testing.
Rapid7 InsightAppSec: DAST product for automated web app and API vulnerability scanning and testing. Built by Rapid7.
Start Left® Security DAST: DAST tool that tests running apps for runtime vulnerabilities via attack simulation. Built by Start Left® Security.
The table above shows where their features, integrations, deployment and company size fit differ.
Rapid7 InsightAppSec is made by Rapid7. Start Left® Security DAST is made by Start Left® Security. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Rapid7 InsightAppSec and Start Left® Security DAST are both Dynamic Application Security Testing products, and both cover DAST. Use the table above to see where features, deployment and company size fit differ.
Need the answer fast? Best DAST Solutions for Business picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more.See the shortlist