Paragliding Map App Reviews

Love this app. I am not a paraglider, but a pilot and I like the clean interface and easy readability for windspeed or temperature. However, these features are not working now. I used two devices and same result.

Every app I own transferred to my new phone except this one. I was told Id need to redownload with my original Apple ID or Id have to repurchase it - I have no idea what that original ID was.