A sprint to validate. A build to ship. A growth engine to scale. One senior team, weekly demos, no handoffs.
30 minutes with a founder. No BDRs, no slides.
Real products, real raises, real acquisitions — built by the same senior team that would build yours.
Mobile app, live streaming, real-time metrics, and hardware integration — built in 6 months. Now backed by Timberlake, Lizzo, Rodgers, and Kelce.
"I've always believed rowing is underutilized… RFS helped us build the product that proved it."
— Bruce Smith, Hydrow
Three iOS + Android SDKs — real-time bidding, interactive radio, analytics. AdMeld went to Google (2011); Motally went to Nokia.
Sheet music platform with real-time accompaniment. Built, launched, and operated by our team. Scale that proves the engineering holds up.
"Their work demonstrates the ability to create products that are smooth running, innovative, and well designed."
— Joe Berkovitz, Yamaha / Hal Leonard
90-second AI eye exam deployed in Boston malls. Hardware + software integration from prototype to production, expanding across New England.
"The pace, the rigor — exactly what we needed to get an AI vision kiosk to market."
— Jack Moldave, Eyebot
Whether you're validating, shipping, or scaling — pick the path that matches where your product is today.
"We need a real product, not a Figma file your investors flip through."
Walk away with: a clickable prototype, technical architecture, competitive analysis, and a go/no-go recommendation — in 3 weeks.
Start with Prototype Sprint →"We've validated the idea. Now we need a team that ships production software, not another agency selling discovery."
Walk away with: a shipped product, the code in your repo, and a team that stays through launch and growth.
Start with AI-Native Build →"The product is live but nobody knows it exists. We need growth that compounds, not one-off campaigns."
Walk away with: a growth strategy, acquisition channels, conversion optimization, and a team that runs it month over month.
Start with AI Growth Engine →The same three advantages, every engagement. Ship while you hire, validate before you scale, and get strategy, design, engineering, and growth from one team.
Recruiting a senior engineering team takes 4–6 months. We ship real product on day one — so by the time your team is in place, you have something in users' hands, not a folder of specs.
We start with a 3-week prototype sprint — a working product, not a deck. You walk away with a real go/no-go before committing the full build budget.
No handoffs between agencies, no communication gaps, no finger-pointing at launch. The same team that validates it builds it, launches it, and grows it.
Timelines, pricing, IP ownership, working with your CTO, equity, and whether you're too early.
Three weeks for a validated Prototype Sprint, then 4–14 weeks for the Product Build depending on tier. Starter MVPs ship in 4–6 weeks; full-feature builds run 10–14.
The Sprint is fixed-price. The Product Build is tiered (Starter / Standard / Enterprise) with scope and price locked at architecture approval. The Growth Engine is a monthly retainer. No open-ended hourly billing.
You own everything — code, designs, models, prompts, training data — under standard work-for-hire terms. Your repos, your cloud account. Investor due diligence reads clean.
That's our preferred mode. We embed with your CTO, work in your repos, follow your standards, and attend your standups. Many of our best engagements happen with a strong technical founder in the driver's seat.
Generally no. We're a services business, and we want you spending equity on the team you'll keep forever. In rare cases we'll do a partial-equity arrangement — let's talk on the intro call.
If you've raised, you're not too early. The Hydrow team came to us early — the result was the app behind a $200M raise. If you're pre-funding, the Prototype Sprint is the cheapest way to get something investors can react to.
Field notes from the studio — what we’re learning about AI products, agent UX, and the messy reality of shipping software in 2026.
