iOS & Android apps
Cross-platform React Native and Expo apps built to feel native on both stores, with offline support, push notifications, and in-app purchases.
Now booking new mobile app projects
We build mobile apps
We build mobile apps
that ship.
Den Digital LLC designs, builds, and launches iOS and Android apps for founders and small businesses. From first sketch to App Store and Play Store — handled end to end.
What we do
Mobile-first product development
A small, focused team that handles design, code, and ship — so you don't have to coordinate three different vendors.
Backend & APIs
Supabase, Postgres, and Node services. Auth, payments via Stripe, file storage, and clean REST or GraphQL APIs that your app can lean on.
App Store & Play Store
Submission, review responses, screenshots, store listings, and ongoing release management — including TestFlight and Play Console internal tracks.
AI integrations
Claude, OpenAI, Whisper, and on-device models. We've shipped tutors, voice apps, and automation tools — and we'll wire them into your app.
Maintenance & support
OS updates break apps. We keep yours alive with monthly maintenance, monitoring, crash triage, and feature additions on a predictable cadence.
Web & landing pages
Marketing sites, dashboards, and admin panels that pair with your mobile app. Built with React, Vite, and deployed on Vercel or Cloudflare.
How we work
From idea to App Store in weeks, not quarters
Tight scope, weekly demos, and one point of contact. No agency overhead, no sub-contractor games.
Discovery
30-minute call to scope the app, audience, and must-have features. You leave with a fixed quote and timeline.
Design
Wireframes and a clickable prototype within the first week. Approve the look before a single line of production code is written.
Build
Weekly TestFlight and Play Console internal builds. You see the app come together in real time, not at the end.
Ship & support
We handle the App Store and Play Store submissions, then keep the app updated and stable on a monthly retainer.
Our stack
Battle-tested tools we ship with
React Native
Expo
TypeScript
Supabase
Postgres
Stripe
Node.js
Python · FastAPI
Claude API
OpenAI
Vercel
Cloudflare
EAS Build
App Store Connect
Play Console
Let's talk
Have an app idea? Tell us about it.
Whether you've got a fully spec'd product or a sketch on a napkin, we'll give you an honest read on what it'll take to ship.