(This program lock software adheres to the principle of simplicity and efficiency, and only retains the only function of program lock, without any other irrelevant plug-ins. It mainly has the following functional highlights: the code has been optimized many times to ensure the efficiency of program lock screen. The program lock is automatically activated when the screen is locked and minimized to ensure privacy and security. Using MD5 encryption algorithm, password protection is more secure. When the screen is locked, all background services are suspended to save power. Official download address: bcs.91/pcsuite-dev/apk/bffa07abcb569e828dd4db22663d58e0.apk)