In one of my recent apps, I was required to track usage of application based on device model (i.e. iPhone 3, iPhone 3GS, iPad 1 etc.). But the problem was that there is was not any direct API available to provide this information. After some research I found this solution:

Import utsname class in your project:

#import <sys/utsname.h>

Create method to identify Device’s Model Number:

- (NSString *)deviceModel
    struct utsname systemInfo;
    return [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];

Create a method to convert Device’s model number into Platform String:

- (NSString *) platformString
    NSString *platform = [self deviceModel];
    if ([platform isEqualToString:@"iPhone1,1"])    return @"iPhone 1G";
    if ([platform isEqualToString:@"iPhone1,2"])    return @"iPhone 3G";
    if ([platform isEqualToString:@"iPhone2,1"])    return @"iPhone 3GS";
    if ([platform isEqualToString:@"iPhone3,1"])    return @"iPhone 4";
    if ([platform isEqualToString:@"iPhone3,3"])    return @"Verizon iPhone 4";
    if ([platform isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";
    if ([platform isEqualToString:@"iPod1,1"])      return @"iPod Touch 1G";
    if ([platform isEqualToString:@"iPod2,1"])      return @"iPod Touch 2G";
    if ([platform isEqualToString:@"iPod3,1"])      return @"iPod Touch 3G";
    if ([platform isEqualToString:@"iPod4,1"])      return @"iPod Touch 4G";
    if ([platform isEqualToString:@"iPad1,1"])      return @"iPad";
    if ([platform isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";
    if ([platform isEqualToString:@"iPad2,2"])      return @"iPad 2 (GSM)";
    if ([platform isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";
    if ([platform isEqualToString:@"i386"])         return @"Simulator";
    if ([platform isEqualToString:@"x86_64"])       return @"Simulator";
    return platform;

Call platformString method to get device’s model name:

NSString *deviceName = [self platformString];

This quick and short piece of code saved my life in getting my task done, which was to track the usage of application based on device mode. I hope you will be benefitted by this piece of code as well. If you have any comment or suggestion related to this article, please drop me a comment.

Thanks and enjoy coding.

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