FOCOS Free (IAPs) From focos.me Made for iPhone, iPad, iPod touch

While Focos lets you adjust many aspects of an image, it is, well, focused on one thing. It lets you adjust the depth of field on any photo after the fact. You can use it to tweak Portrait mode shots, make faux tilt–shift images, choose what to blur, and much more. Best of all, it’s incredibly easy to use, giving you gorgeous results in seconds.