The blurb I received, which led me to buy the Kindle version of this book (I've been meditating for decades and have taught "meditation for beginners" classes, and this book looked like an interesting fresh take on it) said it included the free accompanying app. After buying the book and opening the app, I found out 2 things you should know:
1) You have to sign into the app using Facebook, Google, or an email address. Now they have your user ID and password . You can change your password on your email or whatever source you use to sign in, but may have to change it every time you use the app, in order to keep it secure. (?) I don't like things that require my login info on other platforms - transparent harvesting for marketing/spamming.
2) You only get a group of basic meditations for free. Otherwise, the app is only free for 7 days. If that time runs out and you haven't canceled, you'll be billed $99.99 for one year. It doesn't say what happens after that year. It may well be worth that but it seems pretty steep.
Hope the book delivers more, and in a more straightforward manner, than the app.