Apple is an iOS system, which is close to Android. If there is no jailbreak, only apps that have passed the App Store audit can be installed. Apple's review is very strict and demanding, and no malicious programs will enter the App Store. If it is a jailbroken mobile phone, the probability of downloading malicious programs from third-party channels is also very small, because there are almost no viruses targeting the iOS system.
You can install the butler appstore version without jailbreaking (the function will be incomplete). If you escape from prison, please download the PRO version of Tencent Mobile Manager from cydia.