Cool Cleaner is a utility tool designed for iPhone users to easily clean their device storage. With Cool Cleaner, users can efficiently remove similar photos, large files, and resize video files to free up storage space. The app also offers features to clean up contacts, calendars, and provides system information and network speed testing.

One of the key features of Cool Cleaner is its photo cleaner. It can quickly recognize duplicate photos and allow users to choose their preferred ones for deletion. This helps users to declutter their photo gallery and optimize storage usage. Additionally, the app can identify and remove large files, ensuring that users have ample space for new files.

Cool Cleaner also offers contact cleaning functionality. It allows users to remove contacts that do not have phone numbers or email addresses, helping to streamline the contact list. The app also provides the option to merge duplicate contacts, ensuring a more organized and efficient contact management experience.

In addition to cleaning photos and contacts, Cool Cleaner can also clean up expired calendar events. This feature helps users to keep their calendar organized and up to date.

Furthermore, the app provides system information, allowing users to have a better understanding of their mobile phone's specifications and performance. It also offers a network speed test feature, enabling users to easily check their iPhone's internet speed.

Overall, Cool Cleaner is a comprehensive utility tool that offers multiple cleaning and optimization features for iPhone users. It helps users to efficiently manage their device storage, clean up unnecessary files, and improve overall performance.