The free or 'paid for' phone dancing apps do NOT access any personal or location data from within the software.
No information of any type is accessed or used by the program. Certain phone dynamics are used to compare the local phone movement with that required by the dance steps but this information is not saved or distributed to any outside agency.
No data or communication of any kind is sent to or from the phone dancing application in any way.
There are no plans to ever use user data within the program in future builds.
The free phone dancing software does contain small adverts at the bottom of the first menu screen.
These ads are supplied by admob.com and should only be appropriate for this family friendly product. The developer has limited control over what adverts are shown and what data is known or saved against the phone. admob is part of Google so adverts will be in-line with the majority shown on the web.