# Rapid7 InsightAppSec vs Start Left® Security DAST: side-by-side comparison (2026)

[Rapid7 InsightAppSec](https://cybersectools.com/tools/rapid7-insightappsec) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [Rapid7](https://cybersectools.com/companies/rapid7). [Start Left® Security DAST](https://cybersectools.com/tools/start-leftr-security-dast) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [Start Left® Security](https://cybersectools.com/companies/start-leftr-security). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Rapid7 InsightAppSec](https://cybersectools.com/tools/rapid7-insightappsec)

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](https://cybersectools.com/shortlists/best-dast-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions) picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more.

## Side-by-side comparison

| | Rapid7 InsightAppSec | Start Left® Security DAST |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Dynamic Application Security Testing | Dynamic Application Security Testing |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Rapid7 | Start Left® Security |
| Headquarters | – | – |

### Use cases and capabilities

| | Rapid7 InsightAppSec | Start Left® Security DAST |
|---|---|---|
| Black Box Testing | Yes | – |
| DAST | Yes | Yes |
| Web Security | Yes | – |
| CI/CD | – | Yes |
| DevSecOps | – | Yes |
| App Security | – | Yes |
| Continuous Testing | – | Yes |
| Vulnerability Prioritization | – | Yes |

### Core features

**Rapid7 InsightAppSec**

8 features listed. Sign in on the page to see them.

**Start Left® Security DAST**

4 features listed. Sign in on the page to see them.

### Integrations

**Rapid7 InsightAppSec**

7 integrations listed. Sign in on the page to see them.

**Start Left® Security DAST**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Rapid7 InsightAppSec](https://cybersectools.com/tools/rapid7-insightappsec) fits if you need both cloud and on-premises options.
- [Start Left® Security DAST](https://cybersectools.com/tools/start-leftr-security-dast) fits if you want a cloud product.

## Rapid7 InsightAppSec vs Start Left® Security DAST FAQ

Common questions when comparing Rapid7 InsightAppSec vs Start Left® Security DAST for dynamic application security testing.

### What is the difference between Rapid7 InsightAppSec and Start Left® Security DAST?

**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.

### Who makes Rapid7 InsightAppSec and Start Left® Security DAST?

**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.

### Is Rapid7 InsightAppSec a good alternative to Start Left® Security DAST?

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.

## Related comparisons

- [Rapid7 InsightAppSec vs Cobalt DAST](https://cybersectools.com/compare/cobalt-dast-vs-rapid7-insightappsec)
- [Rapid7 InsightAppSec vs Mend DAST](https://cybersectools.com/compare/mend-dast-vs-rapid7-insightappsec)
- [Rapid7 InsightAppSec vs NightVision Platform](https://cybersectools.com/compare/nightvision-platform-vs-rapid7-insightappsec)
- [Start Left® Security DAST vs Cobalt DAST](https://cybersectools.com/compare/cobalt-dast-vs-start-leftr-security-dast)
- [Start Left® Security DAST vs Mend DAST](https://cybersectools.com/compare/mend-dast-vs-start-leftr-security-dast)
- [Start Left® Security DAST vs NightVision Platform](https://cybersectools.com/compare/nightvision-platform-vs-start-leftr-security-dast)

## Alternatives to each

- [See all Rapid7 InsightAppSec alternatives](https://cybersectools.com/alternatives/rapid7-insightappsec)
- [See all Start Left® Security DAST alternatives](https://cybersectools.com/alternatives/start-leftr-security-dast)

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Source: https://cybersectools.com/compare/rapid7-insightappsec-vs-start-leftr-security-dast

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/rapid7-insightappsec.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Rapid7 InsightAppSec and Start Left® Security DAST: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md