Security scanners for AI-built apps compared (2026)

Updated

Which security scanner should I use for an app built with AI?

Start with the free scan built into your tools (Lovable's security scan, Supabase Security Advisor, GitHub secret scanning). Add a code scanner if your app has server functions, payments or AI features, because website-only scanners cannot see those. Pay for a human review before a launch where real users' data or money is involved.

Three kinds of checks

Built-in scans are free and cover one platform. Supabase Security Advisor flags tables without row level security; Lovable scans Lovable projects; GitHub secret scanning catches known key formats pushed to a repository; Claude Code has a /security-review command for your changes.

Automated scanners cost from free to about $150 a month. Most test your live URL from the outside: fast, but blind to code that only runs on the server, such as a webhook that skips its signature check.

Human audits cost roughly $200 to $2,500 and take one to five days. A person reads the code and understands the business logic, which tools miss.

What to look for

  • Does it read your code, or only your website? Server functions, database functions and payment logic need code.
  • Does it cover your stack? Next.js, Vite, Supabase, Firebase, Stripe and AI APIs each have their own traps.
  • Does a person confirm the findings? Automated tools produce false alarms; a list of 40 warnings you cannot judge is not useful.
  • Does it tell you how to fix it in words you understand, ideally as a prompt for your AI tool?
  • Can someone fix it for you if you do not want to?

Where Redproof fits

Redproof sits between the scanners and the audits: it reads your code and gives a free score in about a minute, then a developer checks every finding that is not a proven fact and sends the full report with fix prompts within 24 hours on working days, for $79. If you would rather not fix it yourself, the fixes are a fixed-price package.

It is not a penetration test and it does not attack your live site. If you need a formal pentest for a customer contract, hire a penetration testing firm.

Questions

Are free scanners good enough?

For a hobby project, often yes. Once you take payments or store personal data, you need something that reads your server code.

Should I run more than one?

Yes, the built-in scans are free. Run them, fix what they find, then use a code review for what they cannot see.