Triggertrap Mobile

Triggertrap Mobile has a load of different types of timelapse capabilities built-in, including ‘vanilla’ timelapse, ‘eased’ timelapse (time-lapses with animation-style acceleration), distance-lapse (take a photo every X meters, instead of every X seconds), and HDR timelapse. It will also have bulb ramping timelapse capability very soon, as part of their v1.2 update for Triggertrap Mobile.

Edit: They’ve finally released an Android App.