I developed the app as a native iOS app, written in the Swift programming language.

I used Firebase, a backend cloud computing service, to store and retrieve user information, as well as for the app's security rules.

For content management, I used Contentful to let admins and makeup artists create and update the dynamic content of the app. This includes the app's video tutorials, the makeup artists' information, the blog posts, the products and the personalized notes for the users.

To purchase products, I integrated the Shopify plugin into the app to let users pay with Apple Pay or with their credit card.

We also built a custom backend for added functionality, such as syncing the products between Contentful and Shopify.

For messaging, I connected a service called Smooch with Zendesk. This way, users can use the in-app messaging system to communicate with makeup artists using Smooch, who can in turn respond to users using the Zendesk app.

Finally, to track important metrics about the app and send important notifications and emails to users, I've used Mixpanel and Google Analytics.