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Get custom software built
for how you actually work.

Off-the-shelf tools don't fit your business. CustomLab builds the apps, CRMs, portals, and internal tools you actually need — tailored to your workflows, delivered in weeks, not months.

100% US-based team • 2-4 week delivery • Projects from $8K • Ongoing partnerships available

30-minute call. We'll scope your project together and give you a straight answer on timeline and cost.

Sound familiar?

You're forcing your business into someone else's software.

You bought the "industry standard" tool. It does 60% of what you need and the other 40% lives in spreadsheets, sticky notes, and workarounds. You're paying for features you don't use and missing the ones you actually need. Meanwhile, your team loses 5-10 hours a week on manual workarounds — that's $15K-$30K a year in wasted payroll.

You tried a dev agency. It went sideways.

Six months, $80K, and a half-finished app that doesn't match what you asked for. The offshore team couldn't understand your workflows. The project manager disappeared. Now you're stuck with code nobody can maintain — and you still don't have the tool you needed.

Your team wastes hours on duct-tape workflows.

Data copied between three tools. A shared Google Sheet that's become mission-critical. Manual processes that should've been a real system years ago. Every new hire has to learn the workarounds. And every month you delay, you're paying the same hidden costs in errors, rework, and lost productivity.

Tired of paying for software that doesn't fit?

Schedule Free Scope Call
Zachary Vorsteg, Founder of CustomLab.ai

Who's building this.

Production Software, Not Prototypes

I'm Zach. I'm a technical founder based in West Palm Beach.

I've built 54 production systems that run 24/7 — data pipelines, monitoring dashboards, workflow automations, and internal tools. Not demos. Not MVPs. Systems that have to work or they cost me money.

I started CustomLab because I saw too many businesses stuck between two bad options: off-the-shelf software that doesn't fit, or dev agencies that take 6 months and $100K to deliver something half-finished.

The CustomLab Difference

We scope tightly, build fast, and ship working software in weeks. Every project gets the same production-grade standards I use on my own systems: real monitoring, real error handling, real documentation.

If I don't think custom software is the right answer for your problem, I'll tell you. Let's talk about what you need.

What we build.

Custom software tailored to how your business actually operates. Not templates. Not themes. Real applications built from scratch for your workflows.

Custom CRMs & Portals

Before: 4 disconnected tools After: 1 system, your way

Your contacts, deals, and workflows in one place — designed around how your team actually sells and services clients. Not Salesforce. Not HubSpot. Yours.

Sales, Real Estate, Professional Services

Scheduling & Booking Apps

Before: Phone tag + manual booking After: Self-serve + auto-assign

Clients book directly. Jobs auto-assign to available team members. Calendar syncs, reminders send, and your dispatch board updates in real time.

Field Services, Healthcare, Consulting

Job & Project Management

Before: Spreadsheets + group texts After: One dashboard, every job

Track every job from quote to completion. Assign crews, log materials, capture photos, generate invoices. Built for how your operations actually flow — not how some PM tool thinks they should.

Construction, Landscaping, Maintenance

Inventory & Asset Tracking

Before: Manual counts + guessing After: Real-time visibility

Know exactly what you have, where it is, and when to reorder. Barcode scanning, low-stock alerts, and reporting that actually matches your warehouse or fleet.

Warehousing, Distribution, Equipment Rental

Client-Facing Apps

Before: Email back-and-forth After: Self-service portal

Give your clients a branded portal to check status, approve work, upload documents, and pay invoices. Fewer phone calls. Better experience. More professional.

Agencies, Property Management, Legal

Internal Tools & Dashboards

Before: 6 tabs open, copy-pasting After: One screen, everything

Pull data from all your systems into one view. KPIs, team performance, pipeline, and operations — in a dashboard designed for the decisions you actually make every day.

Any business with multiple tools

Here's how we build it.

Four steps. No vanishing acts. You see progress every week.

01
Discovery & scoping

We get on a call. You walk us through what you need — the workflows, the pain points, the tools you're currently duct-taping together. We ask questions until we understand your business as well as you do. Then we deliver a written scope: exactly what we'll build, what it'll cost, and when it'll be done.

  • Detailed feature spec
  • Wireframes of key screens
  • Fixed-price quote & timeline
Week 1
02
Design & prototype

Before we write production code, you see it. Interactive prototypes you can click through. We iterate on the design until it feels right. You don't approve mockups — you approve something that looks and feels like the real thing.

  • Interactive clickable prototype
  • Your feedback incorporated in real time
  • Sign-off before development starts
Week 1–2
03
Build & deliver

We build in weekly sprints. Every Friday you get a demo of what's working. Not slides — working software you can test. If something needs to change, we adjust the next sprint. You're never surprised at the end.

  • Weekly working demos
  • Your team tests as we go
  • Full documentation & training
Weeks 2–4
04
Launch & support

We deploy it, train your team, and stick around. Every app we build includes 30 days of post-launch support. Bugs get fixed. Questions get answered. If you want ongoing maintenance and feature updates, we offer that too.

  • Production deployment
  • Team training session
  • 30 days of included support
Week 4+

Ready to scope your project?

Schedule Free Scope Call

Why CustomLab.

We're not a 200-person agency. We're a focused team that builds production-grade software for businesses that need it to work.

100% US-Based

No offshore handoffs. No timezone gymnastics. You talk directly to the people writing your code. Every time.

2-4 Week Delivery

Not 6 months. Not "it depends." We scope tightly, build fast, and deliver working software in weeks. Fixed timeline, fixed price.

You Own Everything

The code, the design, the data — it's all yours. No vendor lock-in. No hostage pricing. If you want to take it in-house later, you can.

Built to Last

Production-grade architecture with monitoring, error handling, and documentation. This isn't a prototype — it's software your business runs on.

Is this right for you?

We build for businesses that have outgrown off-the-shelf software but aren't ready for a full-time dev team.

Good fit

  • You need software that matches your actual workflows
  • Off-the-shelf tools are costing you time or forcing workarounds
  • You've been burned by a dev agency and want something different
  • You want to own the code, not rent someone else's platform
  • You can invest $8K+ in custom software, with optional ongoing partnership

Might not be the right time

  • You need a simple website or landing page
  • Your budget is under $5K
  • You're not sure what you need yet (try our automation audit first)
  • You need an enterprise platform for 1,000+ users
  • You want a mobile game or consumer social app

Investment

Two phases: we build it, then we keep it running.

Phase 1: Your Custom Build

  • Fixed-price, scoped after our free consultation
  • Projects typically range from $8,000 to $25,000+
  • You know the exact cost before we start
  • 2-4 week delivery with weekly demos
  • You own 100% of the source code
Projects from $8,000
Fixed price — no hourly surprises

Projects are delivered in milestones — you see progress before committing more capital. Full upfront payment also available.

Phase 2: Growth Partnership

Starts after launch. Most clients add this within 60 days.

  • Ongoing maintenance, support, and feature development
  • Partnerships start at $1,500/month
  • We monitor uptime, fix issues, ship improvements
  • Month-to-month after initial 90-day ramp
  • Your software keeps getting better, not just maintained
Partnerships from $1,500/mo
90-day initial ramp, then month-to-month

Why both phases?

Custom software needs continuous attention. APIs change. Your business evolves. Edge cases appear. The growth partnership means we handle all of it — you just use the software.

The alternative: hire a junior developer ($60K-$80K/year), hope they can maintain what someone else built, and manage them yourself. Or: we built it, we know it, we keep it running. Starting at $1,500/month.

Every engagement starts with a free consultation. We'll scope your project, give you a fixed quote, and let you decide.

Third-party service costs (hosting, domains, APIs) are not included. We'll estimate these during scoping — typically $20-$100/month.

1 30-min scope call
2 Written spec + quote
3 You decide — no pressure

Know what you need? Let's scope it.

Schedule Free Scope Call

Questions we get asked.

Most agencies run on hourly billing, which incentivizes slow delivery. We scope fixed-price projects and deliver in 2-4 weeks. You talk directly to the developer building your software — no project managers, no account reps, no game of telephone.

Modern, proven technologies: React or Next.js for frontends, Node.js or Python for backends, PostgreSQL for databases, and cloud hosting on providers like Vercel, Railway, or AWS. We pick what's right for your project — not whatever's trendy.

Yes. We build native iOS apps with SwiftUI and cross-platform apps with React Native. We also build responsive web apps that work great on mobile — which is often the faster, cheaper option. We'll recommend the right approach during the consultation.

That's exactly what the Growth Partnership is for. After launch, we stay on to maintain, improve, and support your software on an ongoing basis. Partnerships start at $1,500/month and are month-to-month after the initial 90-day ramp. 90% of clients add this within 60 days of launch because custom software needs continuous attention — APIs change, bugs surface, feature requests come in. It's cheaper than hiring a developer, and we already know your codebase.

Starter apps: 2 weeks. Custom platforms: 3-4 weeks. Enterprise builds: 4-8 weeks. We'll give you a specific timeline during the consultation based on your actual requirements — not a range we stretch later.

Yes. 100%. The source code, the design, the database — everything is yours. We hand over a complete repository with documentation. No vendor lock-in. No recurring license fees for code we wrote.

Yes. QuickBooks, Stripe, Salesforce, Google Workspace, Slack — if it has an API, we can connect it. If it doesn't, we'll find a workaround or tell you upfront what the limitations are.

The company is new. The engineering isn't. I've built and maintained 54 production systems that run 24/7. The free consultation lets you evaluate the quality of our thinking before you commit a dollar. And fixed pricing means we eat the risk, not you.

Minor adjustments are normal and included. If the scope changes significantly, we'll re-quote the new work before building it. You'll never get a surprise invoice. We'd rather have an honest conversation upfront than a billing dispute later.

No. But 90% of clients add it within 60 days. Custom software needs maintenance — APIs change, bugs appear, feature requests come in. The partnership is cheaper than hiring a developer, and we already know your codebase.

Month-to-month. No lock-in. We keep earning your business every month. If at any point the partnership isn't delivering value, you can cancel — and you keep all the code.

You see working demos every week. If something's off, we fix it in the next sprint. You're never stuck waiting until the end to see the final product. By the time we deliver, you've already approved every feature along the way.

Let's talk about what you need.

Free consultation. We'll scope your project, give you a fixed quote, and let you decide. No pressure, no obligation.

Fixed price — no surprises
You own the code
Response within 24 hours

No spam. No obligation. We respond within 24 hours with next steps.

Ready to build the software your business actually needs? Schedule Free Scope Call