Mobile app deployment is where many promising ideas start to encounter real-world friction. What worked as a prototype suddenly has to meet the expectations of app store ecosystems, subscription models, and an increasingly complex stack of services. In this third part of the Pennies-AI journey, weโll explore what it actually takes to navigate the maze of mobile deployment and monetization. …
Web and Mobile Dev with Expo and Express
So, you want to develop a new website with spiffy apps on Android and iOS, and you want that website and your APIs to run in Node Express. It sounds like a lot of work to write the website in React (or Flutter or whatever the language de jour is), the Android app with Android Studio, and the iOS app with Xcode…
Getting Started with Expo
Expo is a platform and framework that allows you to write cross-platform code using React Native, taking advantage of the APIs native to each platform. This makes it extremely simple to develop and deploy apps to a variety of platforms. Additionally, it allows the apps to make use of the native components of whatever platform they are deployed to.
This post first reviews the different features of Expo and how they can be used to rapidly develop and deploy software. Then, weโll talk through the steps youโll need to take to get up and running with the tool.
React Native With Expo
The React Native framework supports an installable mobile application created from JavaScript source code. It is not a React-based web app wrapper. It isnโt a code generator. There is no required application source code in Java, Objective-C, Swift, or Kotlin. Moreover, a single React Native application targets both iOS and Android devices.
In this blog, we show a quick-start that results in an executing application on a phone, within five minutes. That application is live-reloadable, native cross-platform, and written in JavaScript. It is not a web application.




