NeuralStack came to us in October 2024 with a clear brief: build a full-stack AI analytics SaaS, launch it in 3 weeks, and hit $100K ARR within 90 days of launch.
Three months later, they'd done exactly that.
Here's the full story.
The Brief
Sarah Chen (CEO) had raised a small pre-seed round — enough to build an MVP and get to first revenue. She had a clear product vision: a dashboard that connected to any data source, ran AI-powered analysis, and surfaced actionable insights without requiring a data scientist.
Her timeline was aggressive. Her runway was limited. She needed a partner who could move as fast as she needed to.
Week 1: Architecture & Design
We started with a 4-hour architecture session. By the end, we had:
- —Complete database schema (PostgreSQL, Prisma)
- —API design (Next.js App Router, REST endpoints)
- —Auth flow (NextAuth with Google OAuth + email/password)
- —Billing architecture (Stripe subscriptions, Starter/Pro/Enterprise)
- —Component library decisions (Shadcn/ui, custom design system)
Figma designs were done by Friday. Sarah signed off on Monday morning.
Weeks 2–3: Build
We shipped in sprints with daily standups and a shared Linear board. Sarah had visibility into every commit.
Key technical decisions:
- —Real-time updates via Supabase Realtime (not polling)
- —AI layer using Anthropic's Claude API with prompt caching for cost efficiency
- —Charts via Recharts with custom theming
- —File ingestion via UploadThing with background processing
- —Caching via Redis on Upstash for expensive AI queries
By week 3, we had a working product. The last 3 days were hardening: error handling, loading states, mobile responsiveness, and a full QA pass.
Launch Day
NeuralStack launched on Product Hunt in November 2024. #2 Product of the Day. 400 signups in 24 hours.
The 90-Day Sprint
Sarah and her team ran a focused go-to-market. Cold outreach to B2B founders, a content series on LinkedIn, and a $2K/month Google Ads experiment that returned 4.8× ROAS.
By day 90: $103,400 ARR. 214 paying customers. 0 critical production bugs.
What Made It Work
Three things:
1. Clarity of vision. Sarah knew exactly what she was building and who it was for. We didn't waste time on scope creep.
2. Speed of decision-making. Every question got an answer within 2 hours. Most agencies wait days.
3. The right stack. Our battle-tested scaffold means we're not reinventing auth or billing on every project. We start with a working foundation and build the differentiated parts.
The lesson: speed of execution matters more than most founders think. The market moves. Runway burns. Getting to first revenue in 90 days changes everything.