AI-native product studio · Makers of EzList

Software,
grown layer
by layer.

We design, build and launch apps with AI at the core, and we run our own. From the first line of code to the App Store listing, the paperwork, and the automations that keep it running.

Growing Layer 00 / 00 0 atoms 0% aligned

The name

ep·i·tax·y

/ˈe-pə-ˌtak-sē/ · noun · semiconductor fabrication

Growing a crystal on top of a substrate one atomic layer at a time, so every new layer inherits the structure of the one beneath it.

It is how chips are made, and it is how we build software. A clean legal and technical substrate first. Then the product. Then the surface people see. Then the automation that keeps it running. Each layer aligned to the last, with AI doped through all of them.

LAYER 03AUTOMATION LAYER 02WEB SURFACE LAYER 01THE APP SUBSTRATELEGAL + LAUNCH ● DOPANTAI, THROUGHOUT

Services

What we build

Four disciplines, one team. Hire one layer or the whole stack.

Mobile + backend

AI & app development

Native and cross-platform apps with AI built in, not bolted on. We ship the app, the backend and the model integration as one product.

  • iOS (Swift) and Android (Kotlin), or Flutter and React Native
  • AI features that matter: vision, generation, search, recommendations
  • Backends, APIs and cloud on Node, Postgres, Firebase or your own VPS
  • App Store and Google Play submission handled end to end

Web

Websites

Fast, precise sites that look like the product deserves. Landing pages that convert, and web apps that feel native.

  • Marketing sites, landing pages and product pages
  • Web apps, dashboards and customer portals
  • SEO, analytics and Core Web Vitals from day one
  • English, Spanish and German, by default

Agents + workflows

AI automation

Agents and workflows that do the repetitive work while you sleep, connected to the tools you already use.

  • AI agents that read, write, classify and decide on your data
  • Pipelines on n8n, Make, Zapier or custom code
  • Marketplace, CRM, email and payment integrations
  • Support, content and back-office automation with human review

Launch

Launch & compliance advisory

Everything between “the app is done” and “the app is live”. We have been through it with our own product, so you do not have to learn it the hard way.

  • Company setup: LLC, EIN, and what a bank or Apple will ask for
  • Apple Developer and Google Play accounts, review guidelines and rejections
  • Privacy Policy, Terms of Service, data-protection basics (GDPR, CCPA)
  • In-app purchases, Stripe, subscriptions and app-name trademark search

We are builders, not a law firm. When a question needs a licensed attorney, we bring one in and sit in the room with you.

EzList app showing the History screen with sold items and their marketplace status
EzList · History screen · iOS

Work · Built and run in-house

EzList

Snap one photo. AI writes the title, description and price, then publishes the listing to eBay, Etsy, Facebook Marketplace and Reverb at the same time.

EzList is our own product, live on both app stores. It is the reason we know what a launch actually takes: marketplace API approvals, App Store review, privacy policies, subscriptions and the support that follows.

Platforms
iOS · Android
AI
Vision, pricing from live market data, bilingual copy
Integrations
eBay · Etsy · Facebook Marketplace · Reverb
Model
Free tier · Starter $9.99/mo

Process

How a project runs

Fixed scope, fixed price. A demo every week. You own the code and every account from day one.

  1. 011 week

    Discovery

    We map what you are building, who it is for and what has to be true at launch. You leave with a written scope and a price.

  2. 021–2 weeks

    Architecture & design

    Screens, data model, AI approach and the accounts we will need. Nothing is built before it is drawn.

  3. 034–10 weeks

    Build

    Weekly builds on your phone. Real data, real models, real edge cases. Scope changes are priced, never hidden.

  4. 041–2 weeks

    Launch

    Store listings, review, legal pages, payments and analytics. We stay on until the first users are through the door.

  5. 05Ongoing

    Grow

    Automation, new features and model upgrades on a monthly plan, or a clean handoff to your team. Your call.

  • Fixed scope, fixed price
  • Weekly demos
  • You own the code
  • You own every account

AI

AI-native, not AI-washed

A chat box is not a feature. We use models where they change what the product can do, and we measure whether they did.

Where it earns its place

Reading photos, writing copy, pricing from market data, searching your own documents, and agents that finish a task instead of suggesting one. If a rule would do, we write a rule.

Models we work with

Claude, GPT and Gemini through their APIs, and open-weight models on your own infrastructure when data cannot leave the building. We pick per feature, and we switch when a better one ships.

Guardrails, always

Evaluation sets before launch, cost ceilings per user, fallbacks when a model is down, and a clear line on what data is sent where. Your customers’ data stays yours.

Contact

Start a project

Tell us what you are building. We reply within two business days with questions, a rough range, and whether we are the right fit.

hello@epitaxylab.com

English · Español · Deutsch

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