SaaS
Software you pay for monthly instead of buying once.
What is SaaS?
SaaS (Software as a Service) means delivering software over the internet on a subscription basis. Lovable, Cursor, Supabase — all SaaS. Most apps built with vibe coding tools are themselves SaaS.
SaaS is the most common business model for vibe coded apps because it creates recurring revenue. Instead of a one-time sale, you get paid every month.
In Vibe Coding
SaaS is the most common thing vibe coders build. The typical stack: Next.js + Supabase + Stripe + Vercel. You build the product with Lovable or Cursor, add payments with Stripe, and deploy to Vercel.
Example
For example: Instead of selling a mobile app for $5 once, you charge $19/month for access to a web app. Netflix, Slack, and Notion are all SaaS. Your vibe coded app can be one too.
Why this matters
This matters because SaaS appears repeatedly when building, deploying, debugging, or connecting services in vibe coding workflows.
When you'll hit this in practice
You will usually run into SaaS when working on Cost Calculator.