PF
PreFlight
Simple Pricing

Stop debugging blind.
Start knowing.

Free forever for casual use. Pro unlocks unlimited scans and the full diagnostic report for teams shipping Shopify apps.

Free
$0
Forever. No credit card needed.
  • 5 scans per month
  • Basic theme conflict detection
  • Health score (0–100)
  • Copy-paste CSS fixes
  • No API access
  • No full diagnostic report
Try it free →
Most Popular
Pro
$29 /month
Cancel anytime. No lock-in.
  • Unlimited scans
  • Full diagnostic report
  • All 6 diagnostic checks
  • REST API access
  • Priority email support
  • Scan history & exports
Get Pro — $29/month →

Secure checkout via Stripe

Enterprise
Custom
Volume pricing for larger teams.
  • Everything in Pro
  • Team accounts & multi-seat
  • Webhook integrations
  • Dedicated support & SLA
  • Custom integrations
  • Volume discounts
Contact us →

Common Questions

What counts as a scan? ↓
Each URL you submit for diagnosis is one scan. The free plan resets on the 1st of each month. Demo scans using the built-in allbirds.com example don't count.
What's in the full diagnostic report? ↓
The full report includes all 6 diagnostic checks: flair presence, display & visibility, z-index stacking, overflow clipping, CSS rule conflicts, and third-party app conflicts. Each check includes severity scoring, specific element targeting, and copy-paste CSS fixes.
What does API access include? ↓
Pro users get full access to POST /api/diagnose and GET /api/diagnose without rate limits (free tier: 20 req/min). Full JSON response including all issues, fixes, and metadata. See API docs.
Can I cancel anytime? ↓
Yes. Cancel from your Stripe billing portal at any time. No contracts, no lock-in. You'll keep Pro access until the end of your billing period.
Works on any Shopify store? ↓
PreFlight works on any publicly accessible Shopify storefront URL — your own stores, merchant stores, competitor stores, or any URL you're debugging. Password-protected stores require temporarily disabling the password.

Ready to ship without blind spots?

Unlimited scans. Full reports. API access. $29/month, cancel anytime.

Get PreFlight Pro →

Or try the free scanner — no signup, no friction.