We most certainly do! BTWB is available on both Android and iOS devices. It can be found in the "Fitness & Health" section in the app store.
Android app - Visit your Google Play Store and search for it or use this link: https://play.google.com/store/apps/details?id=com.beyondthewhiteboard.johnnyutah&hl=en. It is a free download.
iPhone app - You can access it from your iPhone app or click this link: https://itunes.apple.com/us/app/beyond-the-whiteboard/id583688662
Also free download via the app store.
It's also classified as an iPhone app, just in case you were searching for it on your iPad.