Really great app. Worth trying

First off the app is free so why would you rate it 1?
Next, it really works. It is very easy to use and the slider bar gives you an easy way to adjust your photos. I like the fact it gives you the choice to upgrade to the pro version via the slider bar.

Try it. Worth a look

Bat guy about Night Mode Slow Shutter Photo and Video Camera, v1.8.4