Welcome to Chronus - M9 icon set. This is not a standalone app, you need Chronus, Crius or Cclock. NOTE: This is only supported in version 3. 4 and later of Chronus.
Download the latest installer of Chronus 1.0 free of charge and have a look at users' reviews on Droid Informer. The app is compatible with Android 4.1 and higher. It's secure to download this application. DDevicers has developed Chronus that falls into the Personalization category.
The app was downloaded and set up by over 100 users and its most recent stable release was on Mar 21, 2015. According to the latest info, this application is rated 4.1 on Google Play.