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FOR FOUNDERS & TEAMS WHO NEED SOFTWARE BUILT

POWERED BY ONESPARK — OUR AI DEVELOPMENT SYSTEM.

CUSTOM SOFTWARE,
97% FASTER.

Resource Center shipped in 30 hours. WingmanAI in 33. Enterprise-grade software delivered in weeks — fixed price, full ownership, live staging from day two.

THE ONECHAIR DIFFERENCE

BUILT IN WEEKS, NOT MONTHS.

WingmanAI: 33 hours. WellChild: 27 hours. Resource Center: 30 hours. We don't estimate in sprints. We deliver in full.

YOUR BUILD, LIVE ON DAY 2

No waiting for designs to become real. Your project lives on a staging URL that updates as we build. See it, click it, share it with your team—from day one.

FIXED PRICE. NO SURPRISES.

No hourly billing. No scope creep invoices. You get a fixed price before we touch your project. What we quote is what you pay. One price, one deliverable.

ENTERPRISE QUALITY. STARTUP SPEED.

Senior engineers review every line. ADA, GDPR, HIPAA ready. Pen-tested. Clean, typed, documented code you actually own. Speed doesn't mean shortcuts.

A Powerful System

OneSpark deploys over 85+ AI agents in parallel — scoping, building, and testing simultaneously. This is the engine behind every OneChair project.

HOW IT WORKS

FROM SPARK TO LAUNCH

No bloated timelines. No paying for promises. OneSpark condenses the entire development lifecycle so you see results from day one. Pay for results, not time.

01

ANALYZE

We feed your existing website or project requirements into OneSpark, our AI development system. Whether you are improving a current platform or building from scratch, OneSpark breaks down your project in minutes.

02

PLAN, PROPOSE & PREVIEW

Our team along with OneSpark generates a detailed plan, fixed-price proposal, and a working preview of your build — before you spend a dollar. You see what you are getting, give your input, and move forward with confidence.

03

YOU SEE IT AS WE BUILD IT

Your project goes live on a staging URL from day two. Every update is visible in real time. Review, test, and give feedback as we build.

04

DELIVERED UP TO 97% FASTER

What takes traditional agencies months, OneSpark delivers in weeks. Clean code, full docs, total ownership. Need ongoing development? We offer retainer partnerships to keep building.

Ready to see your build before you commit?

GET A FREE SOFTWARE AUDIT

CHOOSE YOUR PATH

Two ways we work with you

CUSTOM SOFTWARE BUILDS

For teams replacing broken tools or building something that doesn't exist

Whether you're building a custom product or replacing tools your team has outgrown, we build it from scratch. No off-the-shelf compromises. Built around how you want to operate. Fixed price. Delivered in weeks.

  • Internal dashboards & reporting tools
  • Resource centers & knowledge bases
  • Booking & scheduling systems
  • CRM & client management tools
  • Internal workflow platforms
GET A FREE SOFTWARE AUDIT

TECHNICAL PARTNERSHIP

For founders who need a dev team without building one

An embedded development partnership for companies that move fast. We handle architecture, MVP builds, feature shipping, scaling, and iteration—so you focus on the business, not the backlog.

  • MVP development & iteration
  • Technical strategy & architecture
  • Product improvement & roadmap execution
  • Scaling & performance optimization
  • Ongoing feature development
LET'S TALK ABOUT YOUR PRODUCT

OUR WORK

Cody Yellowstone — AI-powered trip planning platform built by OneChair.dev
YELLOWSTONE NATIONAL PARK AI-powered trip planning platform for Cody Yellowstone Travel
Givunity — volunteer management and fundraising platform built by OneChair.dev
GIVUNITY Volunteer management for nonprofits Non-Profit
Resource Center — HIPAA-compliant cell and gene therapy platform built by OneChair.dev
RESOURCE CENTER Cell & gene therapy resource center Healthcare
WellChild — HIPAA-compliant pediatric healthcare booking platform built by OneChair.dev
WELLCHILD HIPAA-compliant healthcare platform Healthcare
WingmanAI — AI-powered LinkedIn sales assistant platform built by OneChair.dev
WINGMAN AI LinkedIn AI sales assistant Sales / AI
HeyEJ — aircraft maintenance diagnostics platform built by OneChair.dev
HEYEJ Aviation operations platform Aviation
Asset Management System — university asset tracking with QR codes and maps built by OneChair.dev
ASSET MANAGEMENT University asset tracking system Education
AND MORE... Let's discuss your project GET IN TOUCH →
8 Month ROI (Resource Center)
27-Hour Average MVP Delivery
400% Increase in Active Users (Givunity)
Full Team Replaced (WingmanAI)

WHAT OUR CLIENTS SAY

Built in 33 hours
"I would recommend OneChair.dev because it's more cost-efficient and you can get to product-market fit in 1/10th of the time. The speed and ability to push features — that's the biggest benefit."
Arjun Banerjee, Founder at WingmanAI — OneChair.dev client
Arjun Banerjee
Founder, WingmanAI
27 hours instead of 2.5 months
"That is literally my platform. After trying it, I realized how much faster I could test and roll out new features using OneChair. Having a way to build and validate features quickly is a total game-changer for me."
Michelle McGuinness, Founder & CEO at WellChild — OneChair.dev client
Michelle McGuinness
Founder & CEO, WellChild
Delivered in 12 hours
"Through my professional experience in the web development space, I have never seen a company so dedicated and capable as One Chair. I was amazed at the quality and speed they were able to output working mockups and a final product."
Katrina Southern, Cody Yellowstone — OneChair.dev client
Katrina Southern
Cody Yellowstone

HOW WE COMPARE

Traditional Agency AI ToolsLovable, Replit, Bolt OneChair.dev
Timeline 3-6 months Hours, then weeks fixing Days to weeks
Real Cost $125K - $250K+ $25/mo + tokens + your time Fraction of agency cost
Who Does The Work You manage a team You become the developer We handle everything
Code Quality Varies by team Unmaintainable spaghetti Clean, typed, documented
After Launch Expensive change orders You're on your own Ongoing partnership
Ownership You own the code Platform-dependent Full code ownership
Visibility Status reports, wait You build it yourself Built for scale
Who Works You manage a team You become the developer We handle everything
Ownership You own the code Platform-dependent Full code ownership
Visibility Status reports, wait You build it yourself Live staging from Day 2
Built to meet compliance standards: OWASP HIPAA SOC 2 GDPR PCI DSS WCAG ISO 27001 ADA

GET A QUOTE

Describe your project and our AI will analyze requirements, suggest architecture, and provide a detailed estimate — in seconds.

Enterprise quality.

Startup speed.

FREQUENTLY ASKED QUESTIONS

OneSpark, our AI development system, coordinates over 85+ specialized AI agents to handle different parts of your project simultaneously. While a traditional team works sequentially—design, then backend, then frontend, then testing—OneSpark runs them all in parallel. A senior engineer oversees every project to ensure architectural quality. The result: what takes a traditional agency months, we deliver in days.

Every project gets a fixed price before we start. No hourly billing, no surprise invoices. Costs depend on scope and complexity, but our AI-powered approach means you get enterprise-quality software at a fraction of typical agency pricing. Contact us for a free project audit and estimate.

Most MVPs ship in 1–2 weeks. For reference: WellChild (HIPAA-compliant healthcare platform) was built in 27 working hours. WingmanAI (B2B sales platform) was built in 33 working hours. A resource center shipped in 30 working hours. Your timeline depends on complexity, but we'll give you a clear estimate upfront.

Yes. Most clients start with a build and continue with a monthly retainer for ongoing development, new features, and maintenance. Because our approach makes iteration fast, adding features takes hours instead of weeks.

You own everything—every line of code, full documentation, complete access. You're never locked in. If you want ongoing development, our retainer partnerships let us keep shipping features and improvements. If you want to bring it in-house later, you can and we provide all documentation to make that change seamless.

GET IN TOUCH

DELIVERY TIME
TECH STACK