I'm the developer working with the Hearoes app and wanted to say thanks very kindly for posting this @Mary Beth along with everyone's feedback. It is much appreciated.
Personally, I found the rehabilitation side of auditory feedback quite challenging, which is why I originally developed Hearoes and have ended up releasing it for free to help others who have faced a similar challenge with training.
As I'm always looking to improve the experience and help those with the auditory training process, if you had any feedback or any challenges you're facing with training, please don't hesitate to let me know and you're welcome to reach out here, by DM or via our website https://www.games4hearoes.com/ as I would love to hear from you and how we can help.
You're feedback is invaluable as I've been able continually update the app to address a lot of the bugs (such as the sign in process) as well as the addition to new content based on the feedback from those experiencing Hearoes.