Which App for my camera?!

I've been recently wondering whether or not I should download either Triggertrap or Gorillacam App; my camera only has either 2 or 10 second timer. I've got both Android as well as iPod. I don't necessarily need more than what my camera has designed for it, it's just that with such an app, I could do more creative things regarding photography, such as, like recently discussed, long exposure HDR. So perhaps I could program the camera to take three differently exposed photos, but with only a 2 second delay, and not have to do the delay for each photo?! Or probably even better, would be to use a remote control, although I have to say, that it would be very neat if the process was more automated!