As an avid user of Omnifocus, I have been looking for an equivalent app on android for quite some time without success. This would cause many people to ditch it and get an iphone, and I would have done the same if it weren't for the voice actions app by google.

I use voice actions as my primary capture tool. Simply by pressing and holding the magnifying glass icon, the app launches and I say something like " note to self, August 31 going to Jay's for lunch 1pm". Then I press send.

It instantly sends an email to myself with that audio recording so I can process later. It also transcribes the words, but this is very unreliable so I just use the audio attachment. (note: this feature only works for me if I set my location to the US, even though I am British)

iPhone now has Siri which I have not used, but I have heard that the apples server is occasionally down and so puts some people off using this feature.

Because of the lack of Omnifocus or an equivalent on the android platform, I use Omni focus on the iPad which works very nicely.