Functional in Five
Building Brilliant Apps
in 5 Days.
We turn ideas into high-quality products in just 5 days.
Fast. Beautiful. Built to last.
Functional in Five
in 5 Days.
We turn ideas into high-quality products in just 5 days.
Fast. Beautiful. Built to last.
We obsess over the tech so you don't have to.
Custom POS and order management platform. The AI Parfait.
Step aside, Toast POS.
Choose the right LLM model—avoid expensive mistakes.
Test before you invest.
CRM for field service. Scheduling, invoicing, route optimization.
Right-sized for small business.
Handwritten card system. Send personalized cards in your own handwriting.
Make every message personal.
Top tier software build in just 5 days - aka fast.
Delivered by engineering veterans you can trust. We obsess so you don't have to.
Transparent fixed-fee pricing. No games. No hidden costs.
You fully own the IP and codebase. No strings attached.
Can't get enough? Add additional F5 sprints to build out your empire.
Aligned expectations from the jump. You decide go/no go before hands hit the keyboard.
Built for founders who want it all — quality, elegance, and velocity.
It's not magic.
It's mastery.
Built for founders who want it all — quality, elegance, and velocity.
It's not magic.
It's mastery.
Functional in Five is built by builders. Our proprietary build model combines focused product strategy, design thinking, AI-assisted development, and elite engineering talent to deliver functional, reliable apps — fast.
Most "fast builds" cut corners. We don't. Our process delivers premium design and rock-solid function at startup speed. Because speed shouldn't mean compromise.
The result?
Products that work, wow, and win attention — all in five days.
co-founder
co-founder
Understand your vision & validate your MVP concept. Zero Hassle. Zero Risk.
Our 5-day build cycle. The F5 team is heads down and hands on keyboard building your vision. Fast.
Sometimes, we could all use the
phone-a-friend lifeline.
Ongoing support, bug fixes, and minor updates. Pricing TBD based on scope.
Contract additional F5 App Build sprints to build out your empire
Everything you need to know about F5 and how we work.
An F5 Sprint takes exactly 5 business days from start to finish. We work intensively during this period to deliver your MVP.
Yes! You fully own all IP and source code. No strings attached, no recurring fees for ownership.
No problem! You can contract additional F5 sprints or consulting hours to continue building and refining your product.
We use modern, scalable technologies including React, Node.js, and cloud platforms. We'll recommend the best stack for your specific needs during the scoping call.
