Android Apps for Maintenance & Optimization
The Maintenance and Optimization category features software that clean out junk or unused files from your system. These cleaners will also remove out obsolete entries from the Windows Registry, browser settings, and leftover hardware drivers data.

SD Maid - System Cleaning Tool
Free

Android Assistant(18 features)
Free

Nova Launcher
Free

Simple System Monitor
Free
Apps Installer for Android
Free

Super Cleaner
Free

Fast Cleaner (Speed Booster)
Free

MemoryUp Pro (Android Edition)
Free to try

Memory Booster Lite
Free
Systerac Memory Booster
Free

RAM Speed Booster App Cleaner
Free

RAM Booster
Free

SD Maid System Cleaning tool
Free

Speed Booster and Memory Cleaner
Free

App Data Cleaner
Free

CPU RAM Cooler Booster Cleaner
Free

Clean & Boost (Speed up RAM)
Free

Network Booster Plus Free
Free

Systweak Android Cleaner
Free

Memory Cleaner RAM Booster
Free

Clean My Phone
Free

WiFi & Mobile Network Coach
Free

Easy Clean Master
Free

Avira Optimizer - Cleaner and Battery Saver
Free