Launching early 2027

A pre-launch check for apps built with AI.

Scan your code and work through the pre-launch checks non-technical founders regularly miss. Then get a readiness score with fixes you can export to your AI coding tool.

Issues found

73 left4 fixed since your last scan

Fixed
Secret key may be exposed in browser codeSecurity & privacy
Fixed
Anyone can read other users’ dataSecurity & privacy
Medium
Backups haven’t been testedReliability
Low
Important pages may load slowlyUser experience

my-saas-app

Overall readiness

62% ready

Functionality80% ready

Security & privacy40% ready

Reliability50% ready

User experience67% ready

Operations75% ready

vibecheck-fixes.md

## Fix: Secret key may be exposed in browser code
Area: Security & privacy
File: src/lib/supabase.ts:4

A Supabase service role key appears in code that runs in the browser. Anyone visiting your app could read it and get full access to your database.

1. Move the key to a server-side environment variable.
2. Use the public anon key in browser code instead.
3. Rotate the old key in your Supabase dashboard.
4. Scan again to confirm.

Who checks your app before launch?

Not all app reviews are created equal. Different ways to check. Different trade-offs

Your AI tool
Good for
Building fast and making fixes.
Trade offs
It only checks what you ask, and won’t raise what you didn’t know to ask about.
Hire an engineer
Good for
Judgement, experience, and someone who'll ask the right questions.
Trade offs
Cost, and good engineers are hard to find on short notice.
Built for non-technical founders
VibeCheck
Great for
Automated checks built by experienced software engineers, available 24/7 with no technical background required.
Trade offs
Not a replacement for an engineer on complex problems.

Let's compare the details.

How each approach handles the essentials.

	Ask your AI tool	Hire an engineer	VibeCheck
Knows what to check before launch	Only checks if you know what to ask		Checks built by real engineering teams
Checks things outside your code
Explanations in plain English	Only if you ask	Depends who you hire
Knows what to fix, knows what to skip	Only if you ask
Rescans to confirm each fix		Only if you book them again
Available on short notice		Good engineers need to book ahead	Available 24/7
Cost	Included with your AI coding tool	Professional rates	Free early trial

How it works

From your repo to a readiness checklist, in four steps.

Step 1

Connect your app

Pick your app’s GitHub repository, and VibeCheck will scan it with read-only access.

VibeCheck/ Connect

Choose a repositoryPick the repository your app lives in.

Read-only

yourname/my-saas-appNext.js

yourname/landing-siteVite

yourname/booking-toolVite

VibeCheck never changes your code.Start scan

VibeCheck/ my-saas-app / Scan

Scanning my-saas-appThis usually takes a minute or two.

Read-only

Reading your projectNext.js

Looking for exposed keys1 found

Checking packages for known problems2 found

Looking for tests and error loggingDone

Next: review what we found.

Step 2

View your issues

Each issue is explained in plain English: what we found, why it should be fixed, and how to fix it.

VibeCheck/ my-saas-app / Issues

Security & privacyHigh

Secret key may be exposed in browser code

What we found: A Supabase service role key appears in code that runs in the browser.
What’s the impact?: Anyone visiting your app could read it and gain full access to your database.
Where: src/lib/supabase.ts:4

4 steps to fixCopy fix for your AI tool

VibeCheck/ my-saas-app / Checklist

Guided checklist · ReliabilityThings a code scan can’t see.

1 of 3

Backups are turned onCheck your database provider’s settings
Restored a backup to a test projectTry it once with your database provider
Outage alerts reach someone who can respondSend yourself a test alert

You can come back to this later.Save and continue

Step 3

Export to your AI
coding tool

Each fix is a clear prompt, created for an AI to understand exactly what to change and why.

Your AI coding tool

You pasted vibecheck-fixes.md## Fix: Secret key may be exposed in browser code …

Done. I moved the key to a server-side environment variable and switched the browser code to the public anon key. Rotate the old key in Supabase when you can.

Ask your AI tool…

Step 4

Rescan

Once your fixes are completed, rescan to verify them and get one step closer to launch 🚀

VibeCheck/ my-saas-app

Rescan complete1 issue fixed since your last scan

Rescan

Overall readinesswas 62%

70% ready

Security & privacy60% ready

Secret key may be exposed in browser codeFixed

Repeat until you’re ready.

Two kinds of checks. One readiness score.

VibeCheck scans your code and identifies issues that can be solved with AI.

It then combines these with tasks that can’t be solved or validated with AI - to form your pre-launch checklist.

Code scanAutomatic

Exposed keys and passwords
Packages with known security issues
Missing automated tests

Manual checklist

Backups are on, and restoring them works
Outage alerts are in place and will reach someone
Key pages load quickly on web and mobile

Overall readiness

62% ready

Functionality80% ready

Security & privacy40% ready

Reliability50% ready

User experience67% ready

Operations75% ready

AI-ready prompts for you to use

Export fixes as Markdown, written as clear instructions for your favourite AI coding tool to implement.

vibecheck-fixes.md

## Fix: Secret key may be exposed in browser code
Area: Security & privacy
File: src/lib/supabase.ts:4

A Supabase service role key appears in code that runs in the browser. Anyone visiting your app could read it and get full access to your database.

1. Move the key to a server-side environment variable.
2. Use the public anon key in browser code instead.
3. Rotate the old key in your Supabase dashboard.
4. Scan again to confirm.

Questions

Something else on your mind? Email us at [email protected].

When can I use VibeCheck?

We’re planning to launch in early 2027. Join the waitlist and we’ll email you when it’s ready.

Which apps does it work with?

At launch, JavaScript or TypeScript React apps on GitHub, including ones built with Vite, Next.js or TanStack Start. Lovable apps, for example, are built this way. Things a code scan can’t see, like your hosting or database settings, are covered by the guided checklist.

What access does it need to my code?

Read-only access to the GitHub repository you choose. VibeCheck never changes your code.

What can’t it check?

It looks for common launch risks, not every possible problem. Some checks rely on your own answers to the checklist. It can’t guarantee your app is secure or ready to launch.

How do the fixes work?

Each issue comes with plain-English steps and a Markdown version for your AI coding tool. Paste it in, let your tool make the change, then rescan to confirm it’s fixed.

Do I need to know how to code?

No. Everything is explained in plain English, and your AI coding tool makes the changes.

A pre-launch check for apps built with AI.

Sound familiar?

Who checks your app before launch?

Your AI tool

Hire an engineer

VibeCheck

Let's compare the details.

How it works

Connect your app

View your issues

Export to your AI
coding tool

Rescan

Two kinds of checks. One readiness score.

AI-ready prompts for you to use

Questions

Help build the launch check you wish you had.

Thank you for joining

You’re on the waitlist

Sound familiar?

Who checks your app before launch?

Your AI tool

Hire an engineer

VibeCheck

Let's compare the details.

How it works

Connect your app

View your issues

Export to your AI coding tool

Rescan

Two kinds of checks. One readiness score.

AI-ready prompts for you to use

Questions

Help build the launch check you wish you had.

Thank you for joining

Export to your AI
coding tool