grammarly.com vs ghost.org
Grammarly's AI that gets smarter with billions of user data points is a tougher nut to crack than Ghost's beautifully designed but ultimately replicable blogging platform.
Grammarly
10clone difficulty
moat 103+ months with a team (landing page: a few hours; the real product: years)$500 (landing page only) / $10M+ (functional product at scale)
You can clone the homepage in an afternoon; you cannot clone the 15-year-old grammar engine and 30-million-user distribution network hiding behind it.
Full teardown →vs
Ghost.org
10clone difficulty
moat 8a weekend for the landing page; 3+ years with a team for the actual Ghost CMS + Pro hosting product$500-2k for the landing clone; $2M+ to rebuild the real product (CMS, editor, billing, email infra, hosting)
You can clone the brochure in a weekend; you cannot clone the decade of CMS engineering, the Stripe-billing rails, or the 50,000-star open-source trust it took to get publishers to route $100M+/year through it.
Full teardown →