---
title: Free Book - How To Build a Cross-Platform App | ArcTouch
description: App developer ArcTouch used Xamarin to efficiently deliver a cross-platform app for the San Jose Earthquakes and their stadium.
url: "https://arctouch.com/resources/avaya-stadium-app-xamarin-case-study"
date_modified: "2024-07-19T18:05:17.579Z"
---
# How We Built a Cross-Platform App for the San Jose Earthquakes

[](mailto:?subject=Interesting%20book&body=I%20thought%20you%20might%20like%20this%20book%20from%20ArcTouch%3A%20https%3A%2F%2Farctouch.com%2Fresources%2Favaya-stadium-app-xamarin-case-study)

## ArcTouch Book

![Blurred picture of Avaya Stadium's interior in the background. In the foreground, a soccer ball and an iPhone displaying the Earthquake mobile app, built with Xamarin by ArcTouch.](/_next/image?url=https%3A%2F%2Fimages.ctfassets.net%2Fefnbmai9c55m%2F3iRvzP9akMqxXcNjioJam2%2F89802daf3514eba9dd2a6028cd75db84%2Fresource-ebook-how-arctouch-used-xamarin-mobile.webp&w=3840&q=75)

## What you'll learn

The two-time MLS Cup champion San Jose Earthquakes needed world-class Android and iOS apps in time to open their stunning new stadium, hailed by many as the best soccer facility in the U.S.

Learn how app development studio ArcTouch used the [Xamarin framework](/xamarin-developers) to efficiently deliver a cross-platform app that really scored with Earthquakes fans.

### Code sharing

The Avaya Stadium app was built using Xamarin.Forms with 80% total code sharing across the iOS and Android platforms.

### Project efficiency

ArcTouch estimates a 35% savings in development time from using Xamarin vs. using a combination of Objective-C and Java.

### Fast fix

Xamarin Insights enabled ArcTouch to identify and fix an important issue in just 48 hours, before users provided negative feedback.

## Get your free book

## Let's build something lovable. Together.

[Get In Touch](/contact)