- LetMeCheck is best for: founders, solo builders and freelancers who built an app with Lovable, Bolt, Replit, Cursor or Claude Code and want to know, in plain English, whether it is safe.
- SonarQube is best for: development teams that want code quality and code security checked on every change, across many languages, with team rules and reports.
At a glance
What SonarQube is
SonarQube is a code quality and code security platform from SonarSource. Sonar describes it as the platform that verifies code, whether a person or an AI wrote it.
It comes in three forms: SonarQube Server (you host it), SonarQube Cloud (Sonar hosts it) and SonarQube for IDE (a free extension for your editor). The Server has a free Community Build and paid editions. You run a scanner in your build pipeline, and the results show up in a dashboard with quality gates.
It is well established with development teams. If you already have a CI pipeline and several developers, it fits naturally into how you work.
What LetMeCheck is
LetMeCheck finds security problems in apps built with AI tools, and explains each one in plain English. It is made for people who are not security experts, and many of them are not developers.
The quick check needs only your website address. It looks at the live site from the outside, the way an attacker would. Nothing is changed and there is no sign-up. The full check connects to GitHub with read-only access to the repositories you pick. It reads the code to find what a website check cannot see: secret keys saved in code (including ones deleted since but still in the history), who can read and change each database table, packages with known security holes, and pages that skip the login check.
Every issue comes with a fix prompt you paste into your AI tool. Then you check again to confirm. LetMeCheck helps you find and fix problems. It does not promise an app is secure.
Key differences
Who each tool is built for
SonarQube assumes a team. It expects a code host, a build pipeline and someone who can configure a scanner. Its reports speak the language of developers: rules, quality gates, technical debt.
LetMeCheck assumes you may never have opened a terminal. It says what is wrong, why it matters and what to paste into your AI tool to fix it.
How you get your first result
With SonarQube, the first result comes after setup. Sonar’s docs recommend a CI integration and a SonarScanner on your build machine. SonarQube Cloud is hosted by Sonar, but its setup still has you connect your CI/CD.
With LetMeCheck, the first result takes about a minute. Paste your website address and read the report. The full check is a second step you take only if you want it.
What gets checked
SonarQube is broad. It looks at code quality and code security across many languages, and it also reports on maintainability. LetMeCheck does not claim to do that.
LetMeCheck is narrow on purpose. Its full check looks at the problems that tend to hurt apps built with AI tools: secret keys in code, database rules that leave customer data open, risky packages the AI tool installed, and routes with no login check. We did not find a check for database access rules in Sonar’s docs (as of November 2026), so if your app is on Supabase or a similar database, that is worth asking Sonar about directly.
Your live site versus your source code
Sonar’s docs describe analysing source code with a scanner. We did not find a feature that checks a deployed website from just its URL.
LetMeCheck starts from the live site, because that is what a stranger sees. The quick check works from your website address alone.
How results are explained and fixed
SonarQube reports findings against rules. A developer can read that and act. A non-developer often cannot.
LetMeCheck writes each issue as “what it means” and “why it matters”, rates it Critical, High or Medium, and gives a fix prompt written for your AI tool (Lovable, Bolt, Replit, Cursor or Claude Code). You paste it in, then run the check again.
How the pricing works
Sonar prices by lines of code. Its Cloud plan has a free tier for private projects up to 50,000 lines and a Team plan from $34 a month, as of November 2026. Paid Server editions are quoted per instance per year.
LetMeCheck prices by number of apps. The quick check is free and unlimited. Paid plans add full GitHub checks for more apps. See pricing for the current numbers.
Where SonarQube is the better choice
- You have a development team and a CI pipeline, and you want checks on every pull request.
- You write in many languages. Sonar supports more than 45 languages, frameworks and infrastructure-as-code platforms. LetMeCheck makes no such claim.
- You care about code quality and maintainability, not only security.
- You need governance features for a larger organisation, such as quality gates and rules your whole team shares.
- You want to host the tool yourself. SonarQube Server can be self-managed.
Where LetMeCheck is the better choice
- You built your app with an AI tool and you are not a developer.
- You want a first answer in about a minute, from a URL, with no sign-up and no pipeline.
- You want each issue in plain English, with a fix prompt you can paste into your AI tool.
- Your biggest worry is exposed keys, open database tables or pages without a login check.
- You want to share a report with a developer you hire, get a fixed quote and have the fix re-checked.
Can you use both?
Often, yes. They answer different questions. SonarQube asks, “Is this code healthy and maintainable for our team?” LetMeCheck asks, “Is this AI-built app safe to put in front of customers?”
A common pattern: a team uses SonarQube in its pipeline, and a founder or product owner runs a LetMeCheck quick check on the live site before launch. Neither replaces the other.
Which should you pick?
- You have developers and a CI pipeline.
- You need code quality checks across many languages.
- You want rules and quality gates your team shares.
- You are happy to set up and maintain a scanner.
- You built with Lovable, Bolt, Replit, Cursor or Claude Code.
- You are not a developer, or you work alone.
- You want plain-English results and fix prompts.
- You want to start with a URL, and add GitHub later.
Frequently asked questions
Is LetMeCheck a replacement for SonarQube?
No. SonarQube is a broad code quality and code security platform for development teams. LetMeCheck is a narrower security check for apps built with AI tools. Many teams could use both.
Can SonarQube check my live website from a URL?
Sonar’s docs describe analysing source code with a scanner. We did not find a feature that checks a deployed site from only its URL (as of November 2026). LetMeCheck’s quick check does exactly that, with no sign-up.
Is SonarQube free?
Part of it is. As of November 2026, the SonarQube Server Community Build is free, SonarQube Cloud has a free tier for private projects up to 50,000 lines of code, and SonarQube for IDE is a free extension. Paid plans and editions add more. LetMeCheck’s quick check is free and unlimited, and its Free plan includes a full report for 1 app.
Do I need to be a developer to use SonarQube?
It helps. Sonar recommends connecting a CI pipeline and running a scanner, and its reports are written for developers. LetMeCheck is written for people who are not developers.
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 a check like that in Sonar’s docs, so ask Sonar if you need it from them.
Which is better for an app built with Lovable or Cursor?
For most people who are not developers, LetMeCheck, because you can start from a URL and get fix prompts for your AI tool. If you are a developer with a pipeline and many languages, SonarQube may suit you better, or you can use both.
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.
- sonarsource.com/products/sonarqube/ (checked 2026-11-03)
- sonarsource.com/plans-and-pricing/ (checked 2026-11-03)
- docs.sonarsource.com/sonarqube-server/analyzing-source-code/overview (checked 2026-11-03)
- docs.sonarsource.com/sonarqube-server/discovering/sonarqube-server-editions (checked 2026-11-03)