Not sure if this is the right forum for this but--
After this morning's update from Google Play Store on Android Blockfolio no longer works. It crashes and disappears as soon as it is launched. Anybody else seeing this?
I had a bit identical issue that you have - one day, Blockfolio on my iPhone has opened, then crashed and never opened again. Reinstalling app, reseting phone setting did not help? If you dont have an account and synced all your data (amount, trades, dates - I know how this is important) you can count that you have lost all your data. No sync = say bye-bye to all had. There is no way to restore your app.