iOS8下安装/卸载APP的代码，好久之前的了，还是贴出来吧，顺便把注释写上了。

#import <Foundation/Foundation.h>
#import <spawn.h>
#import <sys/wait.h>
#import <UIKit/UIKit.h>

/*!
 *  @brief  Mobile Installation 的回调定义
 */

typedef void (*MobileInstallationCallback)(CFDictionaryRef information);

/*!
 *  @brief  Mobile Installation 安装App (8.0)
 *  @param  bundlePath          IPA文件路径
 *  @param  parameters          unknown
 *  @param  unknown1            unknown
 *  @param  unknown2            unknown
 */

extern int MobileInstallationInstallForLaunchServices(CFStringRef bundlePath, CFDictionaryRef parameters, void *unknown1, void *unknown2) NS_AVAILABLE_IOS(8_0);
/*!
 *  @brief  Mobile Installation 卸载App (8.0)
 *  @param  bundleIdentifier    App的Bundle ID
 *  @param  parameters          unknown
 *  @param  callback            Mobile Installation 的回调
 *  @param  unknown             unknown
 */

extern int MobileInstallationUninstallForLaunchServices(CFStringRef bundleIdentifier, CFDictionaryRef parameters, MobileInstallationCallback callback, void *unknown) NS_AVAILABLE_IOS(8_0);

/*!
 *  @brief  为了稍后使用POSIX SPAWN
 */

extern char **environ;

/*!
 *  @brief  更新SpringBoard图标, 依赖uicache
 */

void uicache(void);

void uicache(void){
    posix_spawnattr_t attr;
    posix_spawn_file_actions_t fact;
    pid_t pid;
    char cmd[]="uicache";
    char *args[2];
args[0]=cmd;
args[1]=NULL;
    posix_spawnattr_init(&attr);
    posix_spawn_file_actions_init(&fact);
    posix_spawn(&pid,"/usr/bin/uicache",&fact,&attr,args,environ);
    int stat=0;
    waitpid(pid,&stat,0);
}

int main (int argc, const char * argv[]){
    @autoreleasepool{

#pragma mark
#pragma mark - Install
        CFStringRef path = CFStringCreateWithCString(kCFAllocatorDefault, "/PATH/TO/IPA/FILE", kCFStringEncodingUTF8);

        MobileInstallationInstallForLaunchServices(path, NULL, NULL, NULL);

#pragma mark
#pragma mark - Uninstall

        CFStringRef identifier = CFStringCreateWithCString(kCFAllocatorDefault, "APP.BUNDLE.ID", kCFStringEncodingUTF8);
        if (identifier != NULL) {
            MobileInstallationUninstallForLaunchServices(identifier, NULL, NULL, NULL);
            CFRelease(identifier);
        }

#pragma mark
#pragma mark - UICache

        uicache();

    }
    return 0;
}