The Pure Home app guides you to do the following:

• Set up your DiscovR speaker(s)
• Update your products with latest firmware
• Enabling the Amazon Alexa voice functionality
• Linking your Spotify account for Music Discovery
• Adjusting speaker related settings including your speakers name, battery/energy management settings
• Access to useful product related tips

If you don’t plan on using Amazon Alexa, you’ll only need the app for initial setup of the other features and to download the latest firmware for your product.