Really wanted to give 2 and half stars but there was no way to that. It is unfortunate when you use this app, it overrides all the other functions of the camera. For example, one thing I usually do is play with the focus by touching parts of the picture that I want to be more focus as this usually change the lighting balance also and you cannot do that. Having a camera grid is a great idea and keeps most of your pictures level and while it is nice to touch the screen and move the lines, it would have been nice if you could touch other parts of the screen where the lines aren't to focus. So, with this apps, it's the grid lines that are turned on and all other regular screen features of the camera are off.