Failed miserably ! It certainly did not work on my Galaxy Note 3, with Android 4.4.2; it just locked and did nothing at the scheduled signal off time. Pity, good idea, poor implementation and sad that Google let's apps which don't work continue for sale. Now on Batterest, a similar app, I find this: "* Does not work on Android 4.2.x and later because only the system itself is allowed to change the Airplane Mode setting". At least some developers are honest, I won't be using anymore DI Y Phone Gadgets apps after this.
awesome! This is exactly what I have been looking for. Life is a lot simpler!