App Developer for Startups

Bill Vivino Technology partners with startups to design and develop custom mobile apps. Whether you’re building your MVP or scaling to your first 10,000 users, we deliver high-quality iOS, Android, and cross-platform solutions. We work with founders in North Jersey, the NYC metro area, and across the U.S.

Why Choose Bill Vivino Technology

Leading a team of experienced engineers, we specialize in helping startups build secure, scalable apps that bring bold ideas to life—from MVP to product-market fit and beyond.

Core Development Services

  • iOS & SwiftUI app development
  • Android & Kotlin app development
  • React Native cross-platform/hybrid apps
  • Backend APIs & Firebase/Node.js
  • AR/VR & Unity-based experiences
  • AI & Machine Learning integrations

Software Development Portfolio

Browse web, mobile and AR projects delivered by Bill Vivino Technology for innovative B2B clients.

Featured Software Projects

ModaVision App Logo
ModaVision

Find Your Fit. Everytime.

A virtual fitting‑room app built from scratch using SwiftUI components and Firebase.

NASA WeatherSats AR
NASA WeatherSats AR

A tour of the weather‑satellite fleet, built in Unity.

NASA WeatherSats AR – iOS / Android
Stupid Simple Macro Tracker
Stupid Simple Macro Tracker

iOS nutrition‑tracking app. I shipped the 8.5 & 8.6 version updates.

New Digital Commune
New Digital Commune

Mobile social app for creatives.

Arrows Unity Game
Arrows

A casual Web‑GL archery game built in Unity.

Soccer Unity Game
Soccer Mini‑Game

A simple Unity soccer demo built from a tutorial.

Play Soccer
Eureka Canvas
Eureka Canvas

A SwiftUI sports‑coaching app featuring StoreKit in‑app purchases.

Planet XR
Planet XR

An AR exploration of the solar system; I’m a core member of the development team.

Ready to Start Your Project?

Contact Us

Testimonials

5.0 average across 30 client reviews · See all reviews