- LetMeCheck is best for: people who built an app with an AI tool, may not use pull requests at all, and want a plain-English security check they can start from a URL.
- CodeRabbit is best for: engineering teams who open pull requests every day and want an AI reviewer on each one, including pull requests written by coding agents.
At a glance
What CodeRabbit is
CodeRabbit is an AI code review tool. You connect it to your Git host, and it reviews each pull request: a walkthrough at the top, then comments on individual lines with summaries, security findings, suggestions and one-click fixes.
It also has an editor extension and a command line tool that review changes before they reach a pull request. Its docs describe working alongside coding agents such as Claude Code and Cursor. A Deep Scan looks at committed code for exposed secrets, vulnerabilities such as injection and XSS, infrastructure files and risks in AI-powered apps.
It is built around a team workflow. If your team opens pull requests all day, it slots straight in. CodeRabbit says it is free for open-source projects, and bills per developer for private repositories.
What LetMeCheck is
LetMeCheck is a security check for apps that AI tools built. You do not need pull requests or a team. Paste your website address and read the result in about a minute. It is free, needs no sign-up, and changes nothing on your site.
For a deeper look, connect GitHub with read-only access and choose the repositories. The full check reads your code for secret keys (including deleted ones still in the history), who can read and change each database table, packages with known holes and pages that skip the login check.
Each issue is rated and comes with a fix prompt for your AI tool. LetMeCheck helps you find and fix problems. It does not promise an app is secure.
Key differences
When each one runs
CodeRabbit runs when someone opens a pull request. It is a habit built into how a team ships, and it reviews each change as it arrives.
LetMeCheck runs when you ask. You can check an app that already exists, with no pull request to review. That fits a founder who built the whole app in one afternoon with an AI tool.
Who it is made for
CodeRabbit speaks to engineering teams and developers who already read diffs. Its comments are written for people who review code.
LetMeCheck speaks to people who may not read code at all. Each issue says what it means and why it matters in plain English.
What access it needs
To review pull requests and post comments, CodeRabbit’s GitHub app asks for read and write permissions on several things, including checks, code, issues, pull requests and workflows. You can limit it to selected repositories.
LetMeCheck’s GitHub connection is read-only, you pick the repositories, and you can remove access any time. If you want a tool that cannot change your repository, that is a real difference. A quick check needs no GitHub access at all. For how code is handled, see our security page.
What gets looked at
CodeRabbit looks at code changes. Its Deep Scan covers secrets, source vulnerabilities, infrastructure files and AI app risks in committed code. We did not find a feature on the pages we read that checks a deployed site from a URL, or checks database access rules such as who can read each table (as of November 2026).
LetMeCheck looks at the live site from outside, and with GitHub connected at secret keys, database table access, risky packages and login checks.
How the pricing works
CodeRabbit bills per developer who opens pull requests, and no free tier is listed for private repositories. As of November 2026, Essentials is $30 per user a month ($24 billed yearly), with a 14-day trial. It is free for open-source projects.
LetMeCheck’s quick check is free and unlimited, and its plans are counted in apps, not developers. See pricing.
Where CodeRabbit is the better choice
- Your team opens pull requests every day and wants an AI reviewer on each one.
- You want review comments, summaries and one-click fixes in the pull request itself.
- You use editors and coding agents such as Cursor and Claude Code, and want reviews there too.
- You want a broad review of code logic and quality, not only security.
- You want a vendor that publishes compliance claims. CodeRabbit says it is SOC 2 Type II certified and GDPR compliant. LetMeCheck makes no such claim.
Where LetMeCheck is the better choice
- You are not a developer, or you do not use pull requests.
- You want an answer from a URL in about a minute, with no sign-up.
- You want a connection that is read-only, and limited to the repositories you pick.
- You want each issue in plain English, with a fix prompt for your AI tool.
- You may want a vetted developer to fix what is found, with a fixed quote and a re-check.
Can you use both?
Yes, and it works well. CodeRabbit can review each pull request as the team ships. A founder or product owner can run the LetMeCheck quick check on the live site, to see what a stranger can see before launch.
They answer different questions: “Is this change good?” and “Is this app safe?”
Which should you pick?
- You have a team that opens pull requests daily.
- You want an AI reviewer inside your pull requests.
- You are comfortable with read and write permissions on your repositories.
- You want reviews in your editor and for coding agents.
- You built with an AI tool and may be working alone.
- You want to start from a URL with no sign-up.
- You want read-only access and plain English.
- You want a developer to fix issues if needed.
Frequently asked questions
Is LetMeCheck a CodeRabbit alternative?
For people who built an app with an AI tool and want a plain-English security check, yes. For teams that want an AI reviewer on every pull request, CodeRabbit does a different job and LetMeCheck is not a replacement.
Does CodeRabbit check a live website from a URL?
On the pages we read, CodeRabbit reviews pull requests and committed code. We did not find a feature that checks a deployed site from only its URL (as of November 2026). LetMeCheck’s quick check does that, with no sign-up.
Is CodeRabbit free?
It is free for open-source projects. For private repositories we found no free tier, as of November 2026. Essentials is $30 per user a month ($24 billed yearly), with a 14-day trial. LetMeCheck’s quick check is free and unlimited, and its Free plan includes a full report for 1 app.
What access does each tool need to my repository?
CodeRabbit’s GitHub app asks for read and write access on several permissions, because it posts review comments and checks. LetMeCheck’s GitHub connection is read-only, and the quick check needs no GitHub access at all.
Does LetMeCheck check database access rules?
Yes, in the full check. It looks at who can read and change each database table, because open database rules can leave customer data exposed. We did not find that check on the CodeRabbit pages we read.
Can I use CodeRabbit and LetMeCheck together?
Yes. CodeRabbit reviews your pull requests, and LetMeCheck checks what a stranger can see and the problems common in AI-built apps. Neither blocks the other.
See what a check finds on your app
Run the quick check on your live site in about a minute, with no sign-up. Connect GitHub (read-only) when you want the full check.
More comparisons
Last verified:
Competitor details come from their own websites and docs and can change. Spot something out of date? Tell us.
- docs.coderabbit.ai/ (checked 2026-11-03)
- docs.coderabbit.ai/getting-started/quickstart (checked 2026-11-03)
- docs.coderabbit.ai/guides/code-review-overview (checked 2026-11-03)
- docs.coderabbit.ai/security (checked 2026-11-03)
- docs.coderabbit.ai/tools (checked 2026-11-03)
- docs.coderabbit.ai/overview/ide-cli-review (checked 2026-11-03)
- docs.coderabbit.ai/platforms/github-com (checked 2026-11-03)
- coderabbit.ai/faq (checked 2026-11-03)
- coderabbit.ai/pricing (checked 2026-11-03)