"App that can change the shutter sound."
The shutter sound of smart phones, is an app that can be changed to their favorite sound effect. Because the sound effects are dozens prepared for each of a variety of genres, you can select the shutter sound of their favorite depending on the mood and situation of the day.
In addition, it also becomes possible to not be a shutter sound as an additional function setting, it can also be used as a silent app.
Other focus also, equipped with zoom in / out, all free features, such as setting of ISO.