gistfile1.txt

NSString *string = @"Hannah";
        NSMutableString *reversedStr;
        int len = [string length];
        reversedStr = [NSMutableString stringWithCapacity:len];     
        while (len > 0)
            [reversedStr appendString:[NSString stringWithFormat:@"%C", [string characterAtIndex:--len]]];   
        
        if([[string lowercaseString] isEqualToString:[reversedStr lowercaseString]]) {
            NSLog(@"Plaindrome");
        } else {
            NSLog(@"Not Palindrome");
        }