Apple system is developed based on Unix (free), and Android system is developed based on Unix-like Linux system (free). The former is closed-source and only used by Apple products, while the latter is open-source. The system source code is open except the kernel, which can be deeply customized by manufacturers.

2. The running mechanism of the program is different.

Apple system has tombstone mechanism and sandbox mechanism, which can limit the automatic running of programs in the background and prevent the occupation of memory resources; The background mechanism of Android system, because it is related to the open source of the system, can not prohibit the application from running in the background, unless it is customized by the manufacturer, which can optimize and reduce the self-startup and memory occupation.

3. The use efficiency of hardware resources is different.

According to the system requirements, Apple system makes software optimization based on hardware resources and hardware matching, so that the system can make full use of hardware resources and improve operating efficiency. On the other hand, the Android system runs on software and hardware. The higher the hardware configuration, the lazier the manufacturer is to optimize the system and the lower the use efficiency.

4, the corresponding extension program optimization is different.

Apple has a strict censorship mechanism for its applications. Apps that do not meet the standards are prohibited from being put on the app store and downloaded and installed. The application software of Android system lacks supervision, and most of them cannot be optimized.

5. The system security is different.

Apple's system is closed, strictly controlled and has few loopholes, so it is difficult to be destroyed by third-party software. The security of Android system is relatively low, the system is open source, the application program is not well supervised, and it is easy to be attacked by authority cracking and third-party programs.

References:

Baidu Encyclopedia-Android

Baidu Encyclopedia -iOS (Apple Mobile Operating System)