Horrible update

This app used to be great, my child loved it and would not go to sleep without it. That is of course until we updated, now the app will turn off is the iPad goes to sleep, the sheep makes noises while on sleep mode that end up waking my child. Really hate it now, wish there was a way to delete the update and bring back the older version.

PennyNoToes about Lullaby Lamb, v2.1