iOS game Crashes

I'm in the middle of developing a 2D gallery shooter game with a stationary background with targets coming out from all directions for players to tap and shot at. So i made one scene which can take care of all the levels with a code that would load in the appropriate background and targets depending on which level the user is on. So far everything runs perfectly in the unity editor but when i build it into my itouch/iphone the game would crash when i try to start up the actual game play scene. the menu screens works just fine.

i did some searching online to see what could be the issue. first problem i found was that some of the images i have are too large, originally i had Atlases up to the size of 4096x4096 which i found out wasn't supported on devices, so i dropped everything down to a maximum of 2048x2048 afterwards the game still crashes.

next i found this http://answers.unity3d.com/questions/254984/my-mobile-game-crashes-once-a-certain-number-of-te.html question which talked about how there were too much objects loaded into memory so i made changes to objects so i use Resources.Load() instead to prevent too much RAM usage on startup but this didn't solve the issue either.

I've also wondered if anything from the previous scene was still in memory so i used the following to load the scene

 Application.LoadLevel("empty");
 Application.LoadLevelAdditive("TestGameScene");
 Resources.UnloadUnusedAssets();

and lastly this was what i got from the Profiler(Memory) while running in the editor.

 Total: 379.1 MB Delta: 0 B
 Textures: 307 / 43.9 MB
 Meshes: 238 / 0.5 MB
 Materials: 88 / 26.7 KB
 AnimaitonClips: 0 / 0 B
 AudioClips: 26 / 5.9 MB
 Assets: 3171
 GameObjects in Scene: 132
 Total Objects in Scene: 1018
 Total Object Count: 4189

I'm really stuck and not sure on how to fix the issue i have at hand where the game crashes. Any idea or advice would be greatly appreciated.