My App reloads almost every time, when i switch back to it (on the device)

My App reloads almost every time, when i switch back to it from another app (on the device when using Multi Tasking).

I don’t know. But if i remember it right it wasn’t so extreme often some time ago (last year, i use the iOS-basic version of Unity).
First i thought it might occur when the App uses a lot of memory (e.g. large textures). So i load and unload very dynamically. But it’s still the same.
I also tried to clear the devices’ (iPad 1, iPod Touch 4th G) memory be deleting Apps in the Taskbar in jiggle mode. But it didn’t help.

this is really unpleasant, can anybody help me or give me a hint?

Apps get killed if the device wants memory. So for whatever reason, memory is low. Try a hard reset to completely reboot your device, clearing possibly polluted memory. Freeing resources in Unity might not make a difference, because the Mono heap allocation is still there. You can use the activity monitor instrument to see how much device memory your app is really consuming.

thanks!