Velocity
Velocity by Hiyield
Vibe Code Audit

Built it with AI? Make sure it's safe to launch.

Lovable, Replit, Bolt and Cursor build apps that work. They don't build them to be secure. A senior engineer reviews your code, finds what could leak or break, and tells you exactly what it takes to make it production-ready.

See pricing
  • Senior UK team, in-house
  • European Dev Agency of the Year 2025
  • Your report in five working days
  • 5.0 on Clutch
  • Certified B Corp
What we find

AI writes code that works. Not code that's safe.

The app looks finished, so the gaps are easy to miss. These are the problems we see in almost every AI-built codebase.

Critical

Authentication and access

Can one user see another user’s data? Weak session handling, broken password resets and routes anyone can call.

High

Data exposure

Supabase or Firebase rules left open, public storage buckets, and APIs that return far more than they should.

High

Secrets and configuration

API keys visible in the browser, hard-coded secrets, and missing security headers and CORS settings.

Medium

Launch-readiness

No backups, no monitoring, no error logging, and GDPR and cookie basics that don’t match what the app does.

Works with any AI-built codebase:

  • Lovable
  • Replit
  • Bolt
  • Cursor
  • v0
  • GitHub Copilot
  • Base44
How it works

Your clear answer in five working days

No lengthy scoping. One short call, then we get straight on with it.

  1. Step 1

    Audit call

    Talk us through what you’ve built and where you want to take it. You’ll know straight away if the audit is right for you.

  2. Step 2

    Share your code

    Give us read access to your repo, or send a ZIP. That’s all we need from you.

  3. Step 3

    Full code audit

    A senior engineer reviews every part of your app and writes up exactly what needs fixing, ranked by urgency, in 5 working days.

  4. Step 4

    Your launch plan

    We walk you through every finding and leave you with a clear plan to launch safely.

Pricing

One audit. One fixed price.

Everything we check, for one price. No tiers to choose between.

Full Audit

£750+ VAT, one-off

Your report in 5 working days.

Credited in full if we do the work

Best for

  • Apps built with AI tools that are about to launch, or already have real users
  • Anything that takes payments or stores personal data
  • Founders who want a clear picture before raising, or before spending more on the build

We book your audit in on the call.

What's included

  • Authentication and authorisation review: sign-up, login, password reset, sessions and every protected route
  • Data isolation check: can one user reach another user’s data?
  • Database rules and storage permissions (Supabase RLS, Firebase rules, buckets)
  • Secrets audit: exposed API keys, hard-coded credentials, client-side leaks
  • API security: input validation, error handling and over-sharing responses
  • Payments and third-party integrations: webhooks, OAuth, file uploads
  • Architecture: will it hold up with real users, and what breaks first?
  • Launch-readiness: hosting, backups, monitoring, logging, GDPR and cookie basics
  • Dependency check for outdated packages with known vulnerabilities
  • A plain-English report with every finding ranked Critical, High, Medium or Low
  • A clear recommendation: ship it, make it production-ready, or rebuild
  • A 30-minute walkthrough of the findings and what to do next

Not included

  • Fixing the issues — we quote for that separately, and the audit fee comes off
  • Penetration testing
  • Compliance certification (SOC 2, ISO 27001)
  • Load or performance testing
Free, 30 minutes, no obligation

Book your free audit call

Tell us what you've built. In 30 minutes we'll check the Full Audit is right for you and get it booked in. Your report lands 5 working days after you share your code.

Sophie Hampton, Head of Sales & Account Management at Hiyield

Sophie Hampton

Head of Sales & Account Management, Hiyield

Sophie will find out what you've built and what you're planning, flag anything that sounds urgent, and line up your audit with our senior engineers.

What happens on the call

  • You tell us what you’ve built, which tools you used and who it’s for.
  • We check the audit is the right next step, and flag anything urgent.
  • You leave knowing exactly what we’ll review, and when your report will land.

Calendar not loading? Book with Sophie here

Audit FAQs

Questions about the audit

Not found what you're looking for? Drop us an email or book your free audit call.

What is a vibe code audit?
A review of an app built with AI coding tools like Lovable, Replit, Bolt, Cursor, v0. These tools are great at producing something that works, and bad at making it secure and reliable. The audit finds those gaps before real users do.
Do I need to know how to code?
No. Most of the people we audit for are non-technical founders. The report is in plain English, every issue is ranked by how urgent it is, and we talk you through it on a call.
How is this different from an automated scanner?
Scanners look for known patterns. The problems AI tools create are usually about logic: who can see what, which routes are protected, what the database allows. Finding those takes a person who understands what your app is meant to do. We use automated checks too, but a senior engineer reads the code.
Which tools do you audit?
Anything built with Lovable, Replit, Bolt, Cursor, v0, GitHub Copilot, Base44, or with ChatGPT or Claude writing the code. Hand-written code too. If you're not sure, ask on the call.
What do you need from me?
Read access to your code repository (GitHub, GitLab or a ZIP) and, if it’s live, the URL. Your code stays confidential.
Why is there a call before the audit?
So we understand what you've built and where you want to take it, and can check the audit is the right next step before you spend anything. It's free and takes 30 minutes.
What if the audit says my app is fine?
Then we'll say so. You launch with confidence, having spent £750. It happens more often than you'd think.
Can you fix what you find?
Yes, that's what we do. We quote to make it production-ready once we've read the code, or rebuild it properly as a £18,000 Velocity Build if that's the better route. Either way, the £750 audit fee comes off.