Pics Smoother is a free application that makes it easy to reduct noise and adjust image quality of photos.
17 types of image quality adjustment tools.
You can compare it with the image before change by long press of the image.
[ Tool List ]
Noise Reduction, Median Filter(Noise Reduction), Sharp, Temperature, Tint, Exposure, Highlight, Shadow, Tone Curve 0-4, Saturation, Contrast, Bloom(Soft), Vignette