Clear MKSnapshotter memory - ios

Question

Im currently using the MKSnapshotter but I noticed (similar to MKMapView) that it holds on to a high memory consumption and never releases it for the duration of the app. I've tried releasing the memory but no use:
-(void)viewWillDisappear:(BOOL)animated{
[super viewWillDisappear:animated];
[self releaseMKMapSnapshotMem];
}
-(void)releaseMKMapSnapshotMem{
self.snapshotter=nil;//MKSnapShotter
self.options=nil;//MKSnapShotterOptions
}
Any help is greatly appreciated.
Update
Includes more detail
MKMapSnapshotOptions * snapOptions= [[MKMapSnapshotOptions alloc] init];
self.options=snapOptions;
CLLocation * salonLocation = [[CLLocation alloc] initWithLatitude:self.lat longitude:self.long];
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(location.coordinate, 300, 300);
self.options.region = region;
self.options.size = self.view.frame.size;
self.options.scale = [[UIScreen mainScreen] scale];
MKMapSnapshotter * mapSnapShot = [[MKMapSnapshotter alloc] initWithOptions:self.options];
self.snapshotter =mapSnapShot;
[self.snapshotter startWithCompletionHandler:^(MKMapSnapshot *snapshot, NSError *error) {
if (error) {
NSLog(#"[Error] %#", error);
return;
}
UIImage *image = snapshot.image;
self.mapImage = image;
NSData *data = UIImagePNGRepresentation(image);
[self saveMapDataToCache:data WithKey:mapName];
}];

Answer 1

Try this:
MKMapSnapshotOptions * snapOptions= [[MKMapSnapshotOptions alloc] init];
CLLocation * salonLocation = [[CLLocation alloc] initWithLatitude:self.lat longitude:self.long];
//location.coordinate or salonLocation.coordinate below????
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(location.coordinate, 300, 300);
snapOptions.region = region;
snapOptions.size = self.view.frame.size;
snapOptions.scale = [[UIScreen mainScreen] scale];
MKMapSnapshotter * mapSnapShot = [[MKMapSnapshotter alloc] initWithOptions: snapOptions];
[mapSnapShot startWithCompletionHandler:^(MKMapSnapshot *snapshot, NSError *error) {
if (error) {
NSLog(#"[Error] %#", error);
return;
}
UIImage *image = snapshot.image;
NSData *data = UIImagePNGRepresentation(image);
[self saveMapDataToCache:data WithKey:mapName];
}];
I'm doing pretty much the same as you're doing with only two differences:
options.region = _mapView.region;
options.size = _mapView.frame.size;
my _mapView is the map being displayed in the view controller...