change user-agent for good

Question

I have been able to change the user-agent by using

- (BOOL)webView:(UIWebView *)webView2 shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {

NSMutableURLRequest *req = (NSMutableURLRequest *)request;
NSString *versionString = [[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*)kCFBundleVersionKey];

NSLog(@"user agent = %@", [req valueForHTTPHeaderField: @"User-Agent"]);

if ([req valueForHTTPHeaderField:@"User-Agent"] != NULL) {

    [req setValue:[NSString stringWithFormat:@"%@ %@", versionString, [req valueForHTTPHeaderField:@"User-Agent"]] forHTTPHeaderField:@"User-Agent"];
    NSLog(@"user agent = %@", [req valueForHTTPHeaderField: @"User-Agent"]);

   return YES
    }
}

But when I go to this website on the device http://whatsmyuseragent.com/ my user-agent hasn't changed. Is there a way to change the user-agent for good?

Answer 1

After playing around for a really long time, I discovered that you can change the User Agent without rooting. Not sure if this helps you if you are building an app.