Phone Cooler: Cache Cleaner is a free app developed by SmartApps Production for Android 9.0 devices. The app is designed to help users enhance their phone's overall performance by reducing CPU usage, cleaning RAM, and detecting apps that are overusing system resources.

With Phone Cooler, you can monitor the temperature of your phone in real-time and detect overusing systems resources consuming apps. The app also helps you clean up junk files, boost performance, and cache clean to improve your phone's speed and performance.

One of the key features of Phone Cooler is its ability to reduce CPU usage. By killing background running apps processes, the app helps to make your phone run faster. It also closes battery-draining apps and detects heavy resources consuming apps to reduce CPU usage and free up RAM.

In addition, Phone Cooler features various battery optimization modes to prolong battery performance. The app dynamically analyzes CPU usage and detects apps that are overusing system resources, allowing you to choose which processes to clean up and optimize.

Overall, Phone Cooler: Cache Cleaner is a useful app for anyone looking to keep their phone running smoothly.