Sorry for the slow reply, I have been working on an update (and busy with the full-time job). Thanks for the feedback, the ability for the Bean to send information to the app is a feature that I have been planning on adding.
The next update will hopefully be available by the end of the week or early next week. It will have some smaller improvements that I hope will make Handy BLE a little easier to use and a few bug fixes. There are a few other features that I am working on that will lay the foundation for the Bean being able to send information to the app, and then notifications would come after that.
Because I am just one guy building this in my free time, and the complexity of some of the features I am working on progress is a little slow. The more people are using Handy BLE the more I can justify investing more time into it. I hope to send out more frequent smaller updates that will build up to this and other features.
If you have other ideas or feedback please let me know. I would love to see projects that you and others build with the app and would be happy to showcase these on my website. Also you can email me at handySupport@pdshelley.com and handyFeedback@pdshelley.com.