Peakstack
Private beta · invite only

Is your app actually ready to ship?

Peakstack drives your live app like a real user, testing what it promises against what it actually does, then grades its security for the exposed keys and wide-open databases that sink vibe-coded apps. You get a straight Go / No-Go verdict. Peakstack is currently in private beta. Join the waitlist for an invite.

We’re onboarding a small group at a time. Leave your name and email and we’ll send an invite as soon as a spot opens. No credit card, no spam.

1

What it promises

We extract every claim from your landing page: features, guarantees, capabilities.

2

What it does

A real browser drives your live app: signup, login, core actions, persistence.

3

The verdict

Readiness score, fake-vs-real detection, and prioritized fixes to ship with confidence.

In every paid report

A security pass that finds what vibe-coding leaves exposed

We scan your shipped JavaScript for leaked secrets, detect your Firebase or Supabase backend, and, if you confirm you own the app, actually attempt an unauthenticated read to prove whether your database rules are locked down. You get a letter grade, ranked findings with fixes, and an honest coverage report of exactly what we checked.

Evidence-first: findings come from what we actually observed, not a guess.

  • ✓Private API keys exposed in your JS bundle
  • ✓Firebase / Supabase rules left wide open
  • ✓Identity trusted from localStorage
  • ✓Admin or moderation enforced only in the browser
  • ✓Roles, credits, or balances users can rewrite
  • ✓Private data readable straight from your backend
Free · No signup

The Vibe Coder’s Field Manual

Everything we know about building real software with AI: how to start, how to prompt, and the ten failures we find over and over in apps that already shipped. Written from what we actually see.

Read the manual →

Where apps break

16 min

The flagship chapter. Ten specific ways real AI-built apps fail in production, why the model never warns you, and what each one looks like from the outside.

Auth & database rules

15 min

The number one killer. Why being logged in to your UI means nothing to your database, what row-level security really does, and how to lock it down.

Pre-launch checklist

14 min

The last thing you read before you post the link. Every check is written so you can actually perform it, not just nod at it.

Pay only for what you run

Single-use, high-value reports. No lock-in.

Full URL Report

$19

Flow validation, claim verification, fake-vs-real detection, a graded security pass, and a Go / No-Go verdict.

GitHub-Enhanced Report

$39

Everything in Full, plus feature-to-code mapping, implementation-truth analysis, and repo-aware security review.

Pricing goes live when the beta opens.