Web & app studio · Brooklyn
Websites & apps that grow your business.
I design and build polished websites and custom apps for companies and small businesses — clear pricing, fast turnarounds, and one person who owns it from first call to launch and beyond.
Websites
Marketing sites, landing pages, and online stores that look sharp on every screen and are easy to update.
Web & mobile apps
Full applications with logins, payments, and dashboards — built to handle real customers from day one.
Care after launch
I don't disappear at launch. Ongoing updates, fixes, and improvements from the same person who built it.
What I build
Two ways to work together.
Most projects are a website, a full application, or a bit of both. We figure out which one fits on our first call.
Websites
A site that reflects the quality of your actual work. Fast, mobile-friendly, easy to update, and built to be found on Google.
- Custom design — never a template
- Online stores & booking
- AI features where they help
Custom applications
When a website isn't enough — a real app with accounts, billing, and the features your business runs on, web or iOS.
- Secure logins & payments
- Admin tools & dashboards
- iOS apps when you need them
How it works
Simple, from hello to launch.
No jargon, no runaround. Here's exactly what working together looks like.
We talk
A quick, no-pressure chat about what you need and where you want to go.
Plan & price
You get a clear, fixed quote and timeline before any work starts. No surprises.
Design & build
I design and build in real screens, sharing progress every few days so you're never in the dark.
Launch & support
We go live, and I stick around to keep it fast, fresh, and working.
Why work with me
The proof is the page you're on.
No logo wall, no stock testimonials. The fastest way to judge a web studio is the site it built for itself — so here it is, held to the same standard your project will be.
Start a projectCustom design, never a template
Everything is drawn for you. The site you're reading right now is the bar.
Fast and on budget
Clear fixed pricing up front, and sites tuned to load fast and rank well.
Built to last
Secure, reliable, and made for real customers — not a throwaway prototype.
You own everything
The site, the code, the accounts — all yours. No lock-in, no hostage situations.
Built by hand, signed off by one person
Josh Kostreva · Founder, JAK Apps
Ready to build something great?
Tell me what you have in mind. I'll reply within one business day with whether I'm a fit and what the next steps look like — no pressure, no sales pitch.