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Vibe Greenlight vs Rystic

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Vibe Greenlight compared with Rystic
DetailVibe Greenlight logo Vibe GreenlightRystic logo Rystic
What it doesLaunch readiness check for AI-built apps Realistic API simulators for training and testing
StageNot given Not given
FoundedNot given Not given
Based inUS US
Pricing modelFreemium Freemium
PricingFree Mini-Scan (homepage checks only), Launch Check $39 one-time ($29 for first 50 customers), Launch Check Pro coming soon, Fix-It Pack from $149 Free: $0 with GitHub, Linear and Slack simulators, 10 free hours per month. Pro: $89.99 per seat per month with full catalog, $100 usage credit per seat, $0.012 per simulator-minute after credit. Enterprise: custom pricing.
Key features
  • Security scanning (exposed keys, headers, CORS, RLS)
  • Broken flow detection (404 links, console errors, API failures)
  • Performance analysis via Lighthouse
  • SEO basics check (titles, meta descriptions, sitemaps)
  • Accessibility and UX review
  • Copy-paste fix prompts for Cursor, Lovable and Bolt
  • Supabase RLS read-only probe
  • No repository access required
  • GO/NO-GO launch verdict with score
  • Free re-check within 14 days
  • Slack simulator
  • GitHub simulator
  • Stripe simulator
  • Kalshi simulator
  • Verified against live APIs
  • Latency and fault injection
  • Settable state
  • Local and CI execution
  • Verified UIs
What makes it different
  • No repo access needed—outside-in checks only
  • Ranked report with copy-paste fix prompts, not raw scanner output
  • Under 1 hour delivery for most reports
  • Validated against real APIs daily with published accuracy percentages
  • Stateful simulators that maintain state across calls
  • Local execution with no rate limits
  • Supports 20+ API integrations including Stripe, GitHub and Slack
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check2 no change since last check
Trust Flow (Majestic)213
Citation Flow (Majestic)1430
Referring domains (Majestic)241

6 details filled in for both companies.

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