Production build slots open

AI-native mobile apps
that ship.

Den Digital LLC builds the product layer, backend, AI workflows, and store launch ops for founders and small teams. From first sketch to App Store and Play Store, handled end to end.

Start a project See the pipeline
React Native Expo Supabase Stripe OpenAI Claude EAS Build
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AI workflows wired
Our apps

Apps we've built and shipped

Real products on the App Store and Google Play — designed, built, and maintained by Den Digital.

TutorPro app screenshot
TutorPro app icon iOS · Android

TutorPro

AI-powered SAT & ACT prep with an adaptive study plan, real practice questions, and instant explanations.

App Store Google Play
View app
Easy Note Calc app screenshot
Easy Note Calc app icon iOS · Android

Easy Note Calc

A notepad with a calculator built in — it auto-calculates any line that looks like an expression.

App Store Google Play
View app
My Gym Tracker app screenshot
My Gym Tracker app icon iOS · Android

My Gym Tracker

A clean, fast workout logger with reusable templates, one-tap and voice set logging, and an AI coach.

Google Play App Store
View app
Audihello app screenshot
Audihello app icon iOS · Android · Web

Audihello

Turn any article or web page into natural-sounding audio. Listen on your phone, on the web, or right inside your browser.

Web app Add to browser
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Notes Den app screenshot
Notes Den app icon iOS · Android · macOS

Notes Den

A fast, no-friction notes and to-do app — capture text and checklists that sync and stay out of your way.

App Store Google Play
View app
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.

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.

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.

Build pipeline

Technical depth, release proof included

Every project is wired like a production system: scoped tightly, tested on-device, submitted cleanly, and supported after launch.

01 / Scope

Product architecture

We turn the idea into a lean app spec with the right backend, data model, and launch path from day one.

  • Feature map and store constraints
  • Auth, payments, AI, and data shape
  • Fixed launch target and quote
02 / Build

Native-feeling apps

React Native and Expo give the speed; careful platform polish keeps the app from feeling generic.

  • iOS and Android internal builds
  • Offline states and push readiness
  • Crash-safe release profiles
03 / Wire

AI and backend systems

We connect the app to durable services so the product has real business logic behind the interface.

  • Supabase, Postgres, storage, APIs
  • OpenAI, Claude, Whisper workflows
  • Stripe and entitlement handling
04 / Ship

Store launch operations

Submission work is part of the build, not an afterthought. Screenshots, metadata, review fixes, and updates are handled.

  • App Store Connect and Play Console
  • TestFlight and internal tracks
  • Monthly maintenance after launch
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.

support@dendigital.us