Instead of relying on a dedicated RAM cleaner APK, you can use built-in Android features:
A simple reboot is often the most effective way to clear memory leaks and refresh system performance. 3 ways to clear Ram on Android Download RAM Cleaner apk
If you still choose to download a cleaner, look for those that offer more than just "RAM boosting." Many reputable APKs combine several utilities: Instead of relying on a dedicated RAM cleaner