PNGShrink can decrease the file size of PNG images, keeping transparency and quality.

The well-known app PNGShrink from now on is free to download from the Mac App Stpre. 

PNGShrink is used by many designers, web- and app developers to decrease the file size of these images. Images do not have to be uploaded so your privacy is guaranteed.

I decided to make this app free so anyone can use it without investing anything.

PNGShrink is available now for free, for macOS on the Mac App Store.

Info: PNGShrink for MacOS

Mac App Store: PNGShrink