AMC Security provides a complete set of Android security and optimization features

IOBit's AMC Security is an all-in-one security, clean-up, and tune-up app created by IObit software. It specializes in treating lagging old devices, freeing up memory, protecting against malware. The app's free version features the following functionality: One-Touch Scan, Task Killer, Game Booster, Antivirus Scanner, Security Zone, and Surfing Protection. One-touch scan scans, stops, and cleans redundant background tasks, cache, and trash. Task Killer is a memory booster that kills redundant apps and frees up memory. Game Booster improves the device's gaming performance. Antivirus Scanner fends off trojans, malware, and spyware. Security Zone detects an insecure Wi-Fi network or a fake hotspot to prevent them from being a danger. Surfing Protection warns you if a malicious URL is detected and provides a safe surfing environment. 

AMC's premium features, available as in-app purchases, are Payment Protection, Contacts & SMS Vault, and Anti-Phishing. Payment Protection identifies copycat apps to prevent you from paying thieves and exposing your security codes. The Vault lets you hide private SMS, call logs, or secret Contacts entries in a software private locker. Anti-Phishing provides real-time protection from malware, malicious and phishing websites.

AMC is available on Android 2.2 and up.