Focos brings DSLR-like photography to your iPhone with big aperture and real bokeh effect, which most photographers have always desired.
Portrait photo with depth data allows you to focus after shooting like the hacker technology.
Various diaphragms generate different bokeh spot effects. It's the fun of out-of-focus.
Professional options simulate the pro lens such as creamy, bilinear, swirl and so on.
Creamy is the characteristic of good lens and makes the edge of bokeh spot softer.
Bilinear is the shortcoming of some lens but can stoke spot.
Swirly lens highlights center object surrounded by swirly bokeh.
With lighting tool, you can check the portrait picture in true 3D space, add lights and adjust color, brightness and so on and so forth. It is more powerful and flexible than portrait lighting which Apple provides.