TouchRetouch can rid photos of unwanted elements. Such tools are commonplace – even in free apps like Snapseed – but TouchRetouch being dedicated to the task affords it focus; more importantly, the tools you get are really good.
Blemishes on faces can be removed with a tap. Larger objects can be painted out, whereupon the app fills in the gaps. Alternatively, you can clone from one part of the image to another. There’s also a line remover, which smartly makes short work of power lines and the like that otherwise carve their way across your pic.
Obviously, automation of this kind has some shortcomings – TouchRetouch can’t match desktop apps where you partake in painstaking, time-consuming, pro-level retouching. But for the average iPhone owner wanting to remove annoying things from pics, it’s well worth the small outlay.