Notes loss – Walker - Pedometer Lite Review

I started using this app 1.25 yrs ago, when I was on iOS 7. The inteface looked clean and a small file size for my lower capacity phone. The GPS gobbles the battery and oftentimes stops so it's more work to quit and restart the app. Then I upgraded to iOS 9 and tried a different app but was limited in keeping notes. (I track mileage of my shoes). But Walker still works in iOS 10 but the notes disappear. For example, enter notes, close that section, tap back to the List and the notes might still be there or NOT. If I click a different section such as charts or statistics and go back to List, and then a day; the notes might or might be gone. Going back a day or more all the notes are gone! Not sure why the developer does not updtate this app. Too bad.
Review by what8ever on Walker - Pedometer Lite.