When discussing the all-round comparison between Android and iOS systems, we first need to deeply understand the core differences between the two systems. These differences are not only reflected in the user interface and operating system architecture, but also involve multiple levels such as ecosystem, security performance and hardware integration.
When discussing the all-round comparison between Android and iOS systems, we first need to deeply understand the core differences between the two systems. These differences are not only reflected in the user interface and operating system architecture, but also involve multiple levels such as ecosystem, security performance and hardware integration.
Application device differences
The iOS system is designed for Apple devices and is positioned in the mid-to-high-end market. The Android system is suitable for a variety of Android smartphones, mainly in the mid-to-low-end market. The primary difference between IOS and Android systems is the type of devices they are adapted to. The IOS system is designed for iPhone, iPad, iPod and touch devices, highlighting Apple's unique features and mainly positioned in the mid-to-high-end market. The Android system is widely used in various Android smartphones, with a wide range of mobile phone brands, and its market positioning covers low-end, terminal and high-end, but mainly in the mid-to-low-end.
- System openness differences
The Android system is known for its open source characteristics. It has a dedicated open source project AOSP (Android Open Source Project), which provides more APIs and is flexible and customizable. In contrast, the iOS system is relatively closed, provides fewer interfaces, but has higher security and compatibility.
- System security comparison
The iOS system stands out for its excellent stability and security. iOS is not prone to crashes, ensuring a smooth user experience. In contrast, although the Android system is flexible and changeable, its stability needs to be improved. As the usage time increases, the Android system may freeze or even freeze. At the same time, due to system vulnerabilities, malicious plug-ins may take the opportunity to run in the background, posing a threat to personal data, while causing excessive battery consumption and abnormal traffic consumption. The high flexibility of the Android system makes it easy to freeze and threaten security.
Reasons for iOS's leading fluency
- Difference in response priority
iOS sets the screen response priority to the highest to ensure smooth operation. Its response order follows the architecture of Touch--Media--Service--Core. This means that once the user touches the screen, the system will immediately prioritize the screen display (Touch level). In contrast, the response hierarchy of the Android system is Application--Framework--Library--Kernal, where display-related graphics and image processing is at the Library level, with a relatively low priority. In the Android system, after touching the screen, the system will first activate the application, followed by the framework and screen processing, and the core architecture is ranked last.
- Differences in the development environment
Android requires virtual machine support, which increases the processor burden and makes development complex. The Android system requires a virtual machine when running, which undoubtedly increases the processor burden by 77%. In addition, due to the diversity of the Android system, developers need to customize it for different systems, which often leads to poor optimization results. In contrast, Apple has some restrictions on developers' development plans, so that the iOS system only needs to focus on the operating experience of several Apple-owned mobile devices such as iPhones and iPads. The Android system needs to take into account many existing and potential hardware combinations, which undoubtedly increases the complexity of system optimization. In addition, from the perspective of development language, iOS uses the Objective-C language with extremely high execution efficiency, while the Java language used by Android has relatively low secondary conversion and re-execution efficiency under the intervention of the virtual machine.
- Differences in background management methods
iOS uses a fake background mechanism to save RAM resources. Apple uses a fake background mechanism. When the user switches to the main interface, the previously running software will be suspended, thereby saving RAM resources. This mechanism uses remote notifications. For example, even if QQ is not running in the background, if there is a new message, the Tencent server will notify the Apple server, and then send a notification to the user's mobile phone, without the need for QQ to run in the background. However, Android uses a true background mode. After exiting the software, the software will still start automatically in the background and continue to occupy RAM. Due to limited RAM resources, when the remaining RAM is insufficient, the phone will freeze. At the same time, the running of background programs will also occupy CPU resources and affect the processing power of the phone. This is why Android phones need higher configurations to ensure fluency.
- Thread differences
Apple focuses on single-thread optimization and has superior performance. Apple's single-thread performance is better than Android. Many Android phones use a stack core strategy, while Apple pays more attention to single-thread optimization. Android phones usually use small cores and high frequencies, while Apple uses large cores and low frequencies. More than 2 billion transistors are stacked on each core. This strategy allows Apple to achieve extremely high speeds in single-thread processing. At the same time, because Apple will suspend the running of other applications when running an application, its powerful single-thread capability can better exert its excellent performance when only one application is running in most cases.