Beta testing tool and tips

[teambelair]

Hi All,

I run a martial arts school for children with special needs and made an app to help children workout at home. Before sharing to our parents, I wonder if it would be beneficial to use/integrate with a dedicated tool to collect user feedback. If not, I will simply ask users to send me directly their feedback via email or fill out a form I built directly on the app:

Do you have any free tools and tips you would recommend to launch a successful beta test?

Thanks!