Custom Software for Growing Businesses

We build the software your business actually needs.

From first idea to launch, Vorsteg Software designs, builds, hosts, and maintains custom iOS and web apps. Founder-led. Fixed-price. We run it so you don't have to.

  • Free fixed-price plan — you keep it either way
  • Built, launched, and hosted for you
  • We host and maintain it — you focus on your business

Projects from $10K • Work directly with the founder — no agency handoff • If we're not a fit, we'll tell you

Get Your Fixed-Price Plan

Get your free plan

Answer 5 quick questions about your project. You'll get a fixed-price plan, timeline, and technology recommendation. If we're not the right fit, we'll be honest about it.

Step 1 of 5

What do you want to build?

Customer-facing app
Internal tool or dashboard
CRM or client portal
Website + app
Automate a manual process
Not sure yet — need advice

What's the main goal?

Save the team time
Serve customers better
Replace a spreadsheet or manual process
Launch a new product
Fix or finish an existing app

What stage are you at?

Just an idea
Have a spec or designs
Have something built that needs work
Ready to start ASAP

Where are you at?

Just exploring
Comparing options
Ready to invest if the plan is right

Where should we send your plan?

You'll hear from Zachary Vorsteg personally within 1 business day. You keep the plan either way.

I personally scope every project, so I take a limited number each week.

Why build custom software?

Off-the-shelf tools don't fit your business.

You end up configuring workarounds, exporting data to spreadsheets, building clunky Zapier workflows. Your team gets frustrated. Your processes stay manual. Custom software is built around how you actually work — not how a vendor thinks you should work.

Building with a freelancer or agency is risky.

They disappear after launch. You get handed a codebase you don't understand. The app breaks and nobody's there to fix it. With Vorsteg, we build it, host it, and keep it running. You own the product. We own the operations.

You want to stay focused on your business.

Building and maintaining software is a distraction. You need something that just works — updates automatically, stays secure, never goes down. We handle all of that. You focus on what you do best.

Ready to build something that fits your business?

Get a Fixed-Price Plan

What sets Vorsteg apart?

We're not a development shop that builds your app and disappears. We build it, deploy it to our managed infrastructure, and keep it running 24/7.

Founder-led You work directly with me, not a junior developer
Fixed-price You know the cost upfront. No surprise invoices.
We run it Hosting, monitoring, backups, updates — we handle all of it

You own your app and your data. We own the infrastructure.

What we build.

Two service lines. One founder. Built to fit your business.

Custom Apps & Software

Off-the-shelf doesn't fit. We build the exact tool you need.

  • CRMs, portals, and internal dashboards
  • iOS apps and web applications
  • Fixed-price, 2-4 week delivery
  • Built, hosted, and maintained by us
See our process

Automation & Integrations

Connect your tools. Eliminate manual data entry.

  • Workflow automation across your systems
  • Data extraction and integration
  • Client intake and document generation
  • Powered by AI behind the scenes
Learn more

Our process.

Three phases. You see working software every week. Fixed price, founder-led, outcome focused.

01
Blueprint

We get on a call. You walk us through what you need, the problems you're solving, and your vision for how the app works. We ask questions. By the end of the week, you get a proposal: feature list, technology choice, timeline, and fixed price. You're not locked in — you can compare quotes. We credit this planning fee toward the build if you proceed.

  • Requirements and user flows
  • Wireframes or mockups
  • Fixed-price quote (credited to build)
1 week
02
Build & Launch

We build with rapid iteration. You review working software every week — not mockups, not delays, working features deployed to a staging environment. You give feedback. We adjust. By week 4, we're deploying to our managed hosting. The process is transparent. No surprises.

  • Weekly code reviews and demos
  • Deployed to managed hosting
  • Data migration and setup
2–4 weeks
03
Care & Grow

After launch, we keep your app running 24/7. We monitor uptime, handle updates and security patches, back up your data, and fix bugs as they appear. You want a new feature? We build it. You want to scale? We scale the infrastructure. You own the product. We own the operations.

  • 24/7 monitoring and uptime
  • Monthly updates and patches
  • New features and improvements
Ongoing ($500+/mo)

Want to see what this looks like for your business?

Get a Fixed-Price Plan

Built to run without you watching.

Vorsteg Software builds apps with production-grade reliability. Every app we deploy includes monitoring, error handling, and automatic recovery — the same infrastructure that keeps your business running 24/7.

Monitoring & Alerting

Real-time dashboards track every app we run. If something needs attention, we know before you do.

Automatic Retries

Transient failures — API timeouts, rate limits, network blips — are handled automatically. No manual intervention needed.

Complete Logging

Every action is logged with full context. Nothing is a black box. You can see exactly what happened and when.

Rollback & Recovery

If something goes wrong, we can revert to the last known good state. Your operations are never left in limbo.

Our guarantee: If we don't think we're the right fit for your project, we'll tell you straight. No BS, no sales pitch.

What we can build for you.

Custom software for the unique problems you're trying to solve. Built fast. Built right. Built to stay running.

Booking & Scheduling App

Problem: Scattered across email & phone Solution: Centralized, custom app

A booking app that syncs with your calendar, sends automated reminders, collects deposits upfront, and integrates with your CRM. Clients book themselves anytime. You get fewer double-bookings and more predictable schedule. Built for salons, contractors, consultants, and fitness studios.

Salons, Contractors, Consultants, Fitness

Client Portal

Problem: Email inbox is your CRM Solution: Dedicated client space

Clients can upload documents, track project status, pay invoices, and message you without hitting reply-all. A dedicated client space keeps support emails out of your inbox, improves satisfaction, and looks professional.

Legal, Accounting, Agencies, Consulting

Internal CRM

Problem: Spreadsheets, duplicate data Solution: Single source of truth

A CRM built around how your team actually works — not Salesforce features you'll never use. Track prospects, manage deals, automate follow-ups, and report on pipeline without enterprise bloat. Built for sales teams, real estate, recruiting, and agencies.

Sales, Real Estate, Recruiting, Agencies

Field Service App

Problem: Dispatch via radio & text Solution: Mobile app with real-time updates

A field service app that gives crews real-time job assignments, GPS tracking, photo capture for inspections, on-site signatures, and instant invoicing. Built for HVAC, plumbing, electrical, roofing, and landscaping crews who need to work faster without office overhead.

HVAC, Plumbing, Electrical, Roofing, Landscaping

Inventory & Quoting Tool

Problem: Inventory in Excel, quotes in email Solution: Unified app with real-time data

An app that syncs real-time stock levels, auto-generates quotes with margin calculations built in, and tracks customer orders without spreadsheets. Designed for distributors, wholesalers, and retailers who need instant accuracy and faster turnaround on pricing.

Wholesale, Distribution, Retail, Manufacturers

Mobile App (Custom)

Problem: No app for your unique workflow Solution: Purpose-built iOS app

A custom iOS app designed around your workflow — not a generic tool. Built for field teams, sales reps, and operations. Works offline. Integrates with your backend systems. Stays secure. Deployed to the App Store and hosted by us.

Any business needing mobile first

What to expect.

Here's what you get when you work with Vorsteg Software.

Speed to launch

Most projects ship in 2-4 weeks, not months. We work in short cycles, you see working software weekly, and we iterate based on feedback. No waterfall, no surprises in week 8.

Predictable costs

Fixed price means you know the cost upfront. No scope creep invoices, no "oh we need to add this feature" conversations. We scope it right the first time and deliver.

It stays running

After launch, we monitor 24/7, handle security patches, back up your data, and fix bugs. You don't wake up to downtime. We do.

Founder-led

You don't work with a junior developer or a account manager. I build your app and support it. You have direct access. Questions get answered same day.

Is this right for you?

We work well with some businesses and not as well with others. Here's how to know.

Good fit

  • You have a clear problem custom software can solve
  • You can invest $10K–20K on the first version
  • You want a partner who stays involved, not a dev shop that disappears
  • You care about uptime and reliability
  • You want to move fast, not wait 6 months for delivery

Might not work yet

  • You want to self-host and manage servers yourself
  • You need unlimited free support after launch
  • You expect the app to build itself with AI (that's not real yet)
  • You're looking for $2K MVP or "test the market" price point
  • You need it in 5 days
  • You want to own the source code and hire your own team

Pricing

Simple, transparent, founder-led. You know what you're paying and what you're getting.

App Blueprint

$1,000 – $2,500
Paid planning, credited to the build if you proceed
  • Requirements gathering and user flow definition
  • Wireframes or mockups
  • Feature list and technology recommendations
  • Fixed-price quote for App Launch (no surprises)

App Launch

From $10,000
Fixed price, 2-4 week delivery
  • Built to your spec with weekly code reviews
  • Deployed to managed hosting (included)
  • Data migration and setup
  • Production-grade reliability and monitoring

App Care

From $500/month
Hosting, monitoring, updates, bug fixes
  • 24/7 monitoring and uptime management
  • Security patches and updates
  • Automated backups and recovery
  • Bug fixes and minor improvements

Growth Partnership (optional)

From $1,000–2,000/month
App Care + ongoing feature development
  • Everything in App Care, plus...
  • Regular feature roadmap meetings
  • Ongoing product improvements
  • Scaling and infrastructure upgrades

Every project starts with a free planning call. We'll give you a quote and a timeline, then you decide if it's right.

Third-party services (e.g., payment processors, SMS, email services) are pass-through costs billed separately.

What happens next

1
Planning call
Tell us what you're building
2
Fixed-price quote
Feature list, timeline, and cost
3
You decide
No pressure. Compare if you want.

Ready to build something custom?

Get a Fixed-Price Plan
Zachary Vorsteg, Founder of Vorsteg Software

Who's behind this.

Technical Founder. Built for Reliability.

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

I've shipped 5+ production-grade products — iOS apps live on the App Store, web platforms, and data pipelines that run around the clock. Not toy projects. Real systems with monitoring, error handling, and uptime discipline. When something fails at 3am, it alerts me automatically and retries itself. That's the standard I bring to everything.

I started Vorsteg because I saw the same problem repeatedly: businesses stuck between two bad options — expensive off-the-shelf tools that don't fit, or expensive developers who disappear after launch. I wanted to build a third option: founder-led software development where you get quality, reliability, and ongoing support without the agency overhead.

Your App, My Infrastructure

You own your product and your data. I own the infrastructure — hosting, monitoring, updates, reliability. You focus on your business. I focus on keeping your app running, fixing bugs, and adding features you ask for.

If I don't think I'm a good fit for your project, I'll tell you straight. Let's talk.

Security & data protection.

Your data is your business. Here's how we keep it that way.

Least-Privilege Access

Every app accesses only the data and systems it needs — nothing more. Permissions are scoped tightly and reviewed regularly.

Sandboxed Execution

Each app and integration runs in its own isolated environment. A failure in one system never affects another.

No Training on Your Data

Your business data is never used to train AI models. It's processed, delivered, and that's it.

Complete Audit Logs

Full record of every action your app takes. Available on request, retained for 90 days.

Questions we get asked.

You get a founder-led partnership, not an agency handoff. We build, host, monitor, and maintain your app. You own your product and data. We run the infrastructure so you never have to think about servers, backups, or uptime. After launch, we're still there — fixing bugs, adding features, scaling as you grow.

Typical projects: 2-4 weeks from start to launch. Timeline depends on feature complexity and how quickly you can review working software. We iterate weekly, not annually. You see a working app every week, give feedback, and we adjust.

Projects start at $10,000 fixed-price for your first version. App Care hosting and maintenance from $500/month. Final pricing depends on features, integrations, and platforms. No surprises — we quote it right the first time.

You own your product and your data. We run the infrastructure so you don't have to worry about hosting, monitoring, backups, or updates. If you ever want to move or self-host, we'll hand everything over and help with the transition.

We monitor 24/7. Issues are caught and fixed automatically when possible. If manual intervention is needed, we respond quickly depending on your support tier. You don't debug anything — that's our job.

App Care is month-to-month. No lock-in. Cancel anytime. We keep earning your business every month by delivering value, not by contractual obligation.

That's what the App Care partnership is for. You can request features, fixes, or changes. We prioritize based on impact and handle deployments. Your app evolves as your business grows.

iOS apps, web applications (React, Node.js), and integrations with your existing tools. We use production-grade tech stacks optimized for reliability. We deploy to the App Store, your own domain, or private hosting — whatever fits your business.

You keep the app. It keeps running. You just stop paying for App Care (maintenance and hosting). We'll provide documentation so your team can manage it if you want. Full transition support included.

Fair question. The company is new. The skills aren't. I've shipped 5+ production-grade products — including iOS apps on the App Store — with real monitoring, error handling, and uptime discipline. I'm betting my reputation on every engagement, which is exactly why I won't overpromise. The free planning call lets you evaluate the quality of my thinking before you commit anything.

We build the software your business actually needs. Get a Fixed-Price Plan