You will need to download the app from your app store to your smartphone, or tablet. Where you get the app from depends on your phone's operating system, but there should be an icon or you may have to go into your settings, on your phone to take you to the app store. Once at the store do a search for the Bradley app and download it onto your phone. iPhone has an icon that will take your directly to Apple Store. It's been a few years since I've had an Android model, so I can't remember how I downloaded apps to that phone. Also there are so many manufacturer's that are using Android, each probably has their own method. So if you can't find and icon, check your phone documentation. Android apps are downloaded from the Google Store.
You may want to send Bradley an email to see what apps will be available. Many times there is up to a year lag from when a manufacturer releases an iPhone app, until they release an Android app. That is one of the main reasons I switched to an iPhone. If you have an older phone, also ask them what versions of the operating system (OS) the app works with.
After sending this message I saw the post from Bradley. They do support Android, but if you have an older phone, I would check to see what OS is required to run the app.