used to work excellent @ 5star with great accuracy  now lucky to be 2star unfortunately later releases (esp current v60) is terrible regarding consistent logging  accurate logging etc. same hardware  same os  same everything except the app  i use this when flying to track my headings  groundspeed etc. and looking at the current gpx files shows 'fixes' that are way off  i will roll back to previous version cause i am keen to support the development and hope this info proves useful. more than happy to submit further info for dev-debugging etc. cheers
May 02 2015