diff --git a/src/Environment/Apple/AppleUtils.mm b/src/Environment/Apple/AppleUtils.mm
index a20948726e..12763cbfa8 100644
--- a/src/Environment/Apple/AppleUtils.mm
+++ b/src/Environment/Apple/AppleUtils.mm
@@ -65,7 +65,7 @@ bool AppleGetUserDefaultsString( const Char * _key, Char * const _value, size_t
                 return false;
             }
             
-            NSString * value = [defaults objectForKey:[[NSString alloc] initWithUTF8String:_key]];
+            NSString * _Nullable value = [defaults objectForKey:@(_key)];
             
             if( value == nil )
             {
@@ -88,7 +88,7 @@ bool AppleSetUserDefaultsString( const Char * _key, const Char * _value )
                 return false;
             }
             
-            [defaults setObject:[[NSString alloc] initWithUTF8String:_value] forKey:[[NSString alloc] initWithUTF8String:_key]];
+            [defaults setObject:@(_value) forKey:@(_key)];
             
             [defaults synchronize];
             
@@ -104,7 +104,7 @@ bool AppleRemoveUserDefaultsString( const Char * _key )
                 return false;
             }
 
-            [defaults removeObjectForKey:[[NSString alloc] initWithUTF8String:_key]];
+            [defaults removeObjectForKey:@(_key)];
             
             [defaults synchronize];
 
diff --git a/src/Kernel/MemoryStreamHelper.cpp b/src/Kernel/MemoryStreamHelper.cpp
index 46fd778f5e..b6006aea01 100644
--- a/src/Kernel/MemoryStreamHelper.cpp
+++ b/src/Kernel/MemoryStreamHelper.cpp
@@ -124,8 +124,8 @@ namespace Mengine
             MENGINE_ASSERTION_MEMORY_PANIC( memory );
 
             void * memory_buffer = memory->newBuffer( _size );
-
             MENGINE_UNUSED( memory_buffer );
+            
             MENGINE_ASSERTION_MEMORY_PANIC( memory_buffer );
 
             return memory;
@@ -139,8 +139,8 @@ namespace Mengine
             MENGINE_ASSERTION_MEMORY_PANIC( memory );
 
             void * memory_buffer = memory->newBuffer( _size );
-
             MENGINE_UNUSED( memory_buffer );
+            
             MENGINE_ASSERTION_MEMORY_PANIC( memory_buffer );
 
             return memory;
diff --git a/src/Kernel/Stream.cpp b/src/Kernel/Stream.cpp
index f2592efcef..5edc257170 100644
--- a/src/Kernel/Stream.cpp
+++ b/src/Kernel/Stream.cpp
@@ -111,7 +111,6 @@ namespace Mengine
             void * compress_memory = compress_buffer->getBuffer();
 
             size_t read_data = _stream->read( compress_memory, compress_size );
-
             MENGINE_UNUSED( read_data );
 
             MENGINE_ASSERTION_FATAL( read_data == (size_t)compress_size, "invalid read data '%zu' need '%zu'"
@@ -571,4 +570,4 @@ namespace Mengine
         }
         //////////////////////////////////////////////////////////////////////////
     }
-}
\ No newline at end of file
+}}
diff --git a/src/Platforms/SDLPlatform/SDLInput.cpp b/src/Platforms/SDLPlatform/SDLInput.cpp
index 2823dbb17b..e6fa54f472 100644
--- a/src/Platforms/SDLPlatform/SDLInput.cpp
+++ b/src/Platforms/SDLPlatform/SDLInput.cpp
@@ -113,7 +113,6 @@ namespace Mengine
                 int x;
                 int y;
                 Uint32 state = SDL_GetMouseState( &x, &y );
-
                 MENGINE_UNUSED( state );
 
                 mt::vec2f point;
@@ -146,7 +145,6 @@ namespace Mengine
                 int x;
                 int y;
                 Uint32 state = SDL_GetMouseState( &x, &y );
-
                 MENGINE_UNUSED( state );
 
                 mt::vec2f point;
@@ -244,7 +242,6 @@ namespace Mengine
         int x;
         int y;
         Uint32 state = SDL_GetMouseState( &x, &y );
-
         MENGINE_UNUSED( state );
 
         this->calcCursorPosition_( _sdlWindow, x, y, _point );
diff --git a/src/Plugins/AppleGameCenterPlugin/AppleGameCenterDelegate.mm b/src/Plugins/AppleGameCenterPlugin/AppleGameCenterDelegate.mm
index f93f70dc4c..e41cdcadcd 100644
--- a/src/Plugins/AppleGameCenterPlugin/AppleGameCenterDelegate.mm
+++ b/src/Plugins/AppleGameCenterPlugin/AppleGameCenterDelegate.mm
@@ -30,13 +30,13 @@ - (BOOL) login:(void(^)(NSError* _Nullable))handler {
         handler( nil );
     }];
     
-    return true;
+    return YES;
 }
 
 - (BOOL) loadCompletedAchievements:(void(^)(NSError * _Nullable, NSArray * _Nullable))handler {
     if( m_authenticateSuccess == false )
     {
-        return false;
+        return NO;
     }
     
     [GKAchievement loadAchievementsWithCompletionHandler:^(NSArray<GKAchievement *> * _Nullable achievements, NSError * _Nullable error) {
@@ -67,26 +67,26 @@ - (BOOL) loadCompletedAchievements:(void(^)(NSError * _Nullable, NSArray * _Null
         handler( nil, cmpAch );
     }];
     
-    return true;
+    return YES;
 }
 
 - (BOOL) resetAchievements:(void(^ _Nonnull)(NSError * __nullable error))handler {
     if( m_authenticateSuccess == false )
     {
-        return false;
+        return NO;
     }
     
     [GKAchievement resetAchievementsWithCompletionHandler:^(NSError * _Nullable error) {
         handler( error );
     }];
     
-    return true;
+    return YES;
 }
 
 - (BOOL) reportScore:(NSString*)identifier score:(int64_t)score response:(void(^)(NSError * _Nullable))handler {
 	if( m_authenticateSuccess == false )
     {
-        return false;
+        return NO;
     }
     
 	GKScore * scoreReporter = [[GKScore alloc] initWithLeaderboardIdentifier:identifier];
@@ -98,13 +98,13 @@ - (BOOL) reportScore:(NSString*)identifier score:(int64_t)score response:(void(^
         handler(error);
 	}];
     
-    return true;
+    return YES;
 }
 
 - (BOOL) reportAchievementIdentifier:(NSString*)identifier percentComplete:(double)percent withBanner:(BOOL)banner response:(void(^)(NSError * _Nullable))handler {
     if( m_authenticateSuccess == false )
     {
-        return false;
+        return NO;
     }
     
     GKAchievement * achievement = [[GKAchievement alloc] initWithIdentifier:identifier];
@@ -115,7 +115,7 @@ - (BOOL) reportAchievementIdentifier:(NSString*)identifier percentComplete:(doub
         handler(error);
     }];
     
-    return true;
+    return YES;
 }
 
 @end
diff --git a/src/Plugins/AppleMARSDKPlugin/AppleMARSDKService.mm b/src/Plugins/AppleMARSDKPlugin/AppleMARSDKService.mm
index 35629a6f04..438c7c1b76 100644
--- a/src/Plugins/AppleMARSDKPlugin/AppleMARSDKService.mm
+++ b/src/Plugins/AppleMARSDKPlugin/AppleMARSDKService.mm
@@ -201,7 +201,7 @@
         UIViewController * rootViewController = Helper::iOSGetRootViewController();
         
         [[MARAd sharedInstance] showRewardVideoAd:rootViewController
-                                         itemName:[[NSString alloc] initWithUTF8String:_itemName.c_str()]
+                                         itemName:@(_itemName.c_str())
                                           itemNum:_itemNum
                                          delegate:m_adRewardedDelegate];
     }
diff --git a/src/SDLApplication/MengineUIKitDelegate.mm b/src/SDLApplication/MengineUIKitDelegate.mm
index 4e904304f0..fa621ec25d 100644
--- a/src/SDLApplication/MengineUIKitDelegate.mm
+++ b/src/SDLApplication/MengineUIKitDelegate.mm
@@ -18,7 +18,7 @@ - (id)init {
             continue;
         }
         
-        id delegate = [c alloc];
+        id delegate = [[c alloc] init];
 
         [self.m_applicationDelegates addObject:delegate];
     }
@@ -27,7 +27,6 @@ - (id)init {
 }
 
 - (void)dealloc {
-    [self.m_applicationDelegates release];
     self.m_applicationDelegates = nil;
     
     [super dealloc];
diff --git a/src/Systems/OpenGLRenderSystem/OpenGLRenderImageLocked.cpp b/src/Systems/OpenGLRenderSystem/OpenGLRenderImageLocked.cpp
index 92a03fd48c..695853d09d 100644
--- a/src/Systems/OpenGLRenderSystem/OpenGLRenderImageLocked.cpp
+++ b/src/Systems/OpenGLRenderSystem/OpenGLRenderImageLocked.cpp
@@ -30,7 +30,6 @@ namespace Mengine
         );
 
         void * buffer = memory->newBuffer( _size );
-
         MENGINE_UNUSED( buffer );
 
         MENGINE_ASSERTION_MEMORY_PANIC( buffer, "invalid new memory (%zu) rect from %u %u to %u %u"