Hey [name],
We are excited to announce the release of our new app, [name of app].
[1-liner introduction about your app and its function]
In the last few months, we have been tirelessly working to improve our product/service and we believe that [name of app] will help you enjoy your experience with [company name] even more.
So what is [name of app] all about?
[explain the purpose of your app with visuals and in further depth, focusing on the features].
You can download our app directly from the App Store and Google play
[add CTA button to download the App]