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iOS & Android app development, from prototype to App Store

We build iPhone and Android apps from a single codebase, so you launch on both stores for less, with one app to maintain.

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What you get

  • A clickable prototype you can test before any code is written
  • One app for iPhone and Android, built with React Native or Flutter
  • Logins, push notifications, camera and photo uploads, maps, payments and in-app purchases
  • A secure back end and admin tools to manage your users and data
  • App Store and Google Play setup, review and release handled for you
  • Updates, fixes and new features after launch

We’ve shipped our own

We build and run our own apps, including See Job Run, a construction management app used by contractors and their crews. We know what it takes to get an app approved, launched and kept running.

Start with the idea

You don’t need a technical spec. Bring the idea and we’ll help you decide what to build first, what can wait, and what it will cost before work starts.

Also from PEN Concepts

Websites and apps from one team, plus full marketing through our trusted partner.

Business Websites

Fast, mobile-friendly websites built to be found on Google and bring in customers.

Learn more

Web Apps & Portals

Client portals, dashboards and custom tools that replace spreadsheets and manual work.

Learn more

Marketing & Launch

SEO, Google Business Profile, social media, ads and email, so customers find you after launch.

Learn more

How it works

Discover, design, build, launch. A fixed quote before any work starts, and progress shared at every stage.

Start a project

Let’s start with your why

Before we talk features, we want to understand what you’re trying to accomplish, who it’s for and what success looks like. That’s how we know what to build and how to help it grow.

Prefer email?[email protected]

Project questionnaire

  1. 1Your goals and why
  2. 2Your customers
  3. 3What you want built
  4. 4Marketing and launch
  5. 5Timing, budget and contact

Takes about 5 minutes. We’ll reply to set up a free consultation.

Start the questionnaire