How We Launch SaaS MVPs in 8 Weeks

Why Most SaaS Builds Take a Year (And Fail)

The most common mistake we see is building too much before talking to users. Founders spend 12 months building every feature they imagined, launch to silence, and run out of runway.

The fix isn't a better development team — it's a tighter scope. An MVP that does one thing brilliantly will always beat a feature-bloated product that does twelve things poorly.

Week 1–2: Define the Single Core Loop

We spend the first two weeks ruthlessly scoping. What is the one action that delivers value to the user? That's your core loop. Everything else is post-launch.

For ReplyWise Pro (our own product): the core loop was "paste a review → get an AI reply". That's it. Auth, billing, analytics came later.

Deliverable: A written scope document, data model, and wireframes for 5-8 screens.

Week 3–5: Build the Core, Wire Up Auth & Billing

We build in this order every time: (1) the core feature, (2) auth, (3) billing. In that order, never reversed.

Most developers want to build auth first because it's familiar. We disagree — auth without a working feature is just overhead. Build the value, then protect it.

Stack: Next.js + Node.js + PostgreSQL + Stripe/Razorpay. Deployed on Vercel + Supabase for speed.

Week 6–7: Polish, Onboarding Flow, and Emails

A technically working product that's confusing to set up won't retain users. Week 6-7 is for the onboarding flow — the path from "just signed up" to "got value for the first time".

We also wire up transactional emails (welcome, trial expiry, billing receipts) via Resend or SendGrid.

Week 8: QA, Staging, and Launch

Full QA pass across all browsers and mobile. Fix every console error. Staging environment matches production exactly. Launch.

We don't do soft launches. You either launch and market it, or you're still building. Pick a date in week 1 and hold to it.

What's Not Included in an MVP

Admin panel, usage analytics, public API, webhooks, multi-tenancy, and white-labelling — none of these belong in an MVP. They come in version 1.1, after you have paying users telling you what they actually need.

A note on mobile apps: if your product is a mobile app, then the app IS your MVP. What we mean is don't build a web app AND an iOS app AND an Android app simultaneously for v1. Pick the platform where your users actually are. You can add the others once you have traction.