Adobe Launch: SDK for Analytics -> Okay to delete Profile Extension?

[datapip]

Hello everybody,

hope you're doing fine  

We are currently doing more and more app tracking with Analytics and the Launch SDK. Thus we often get asked by developers if it is necessary to have the Profile Extension since they do not use it.

It is added by default when setting up a property in Launch and I heared it is needed. So my questions would be:

1. Can the extension be deleted / disabled if developers do not use it for storing data into a client side profile?

2. Or is it needed for the SDK to work properly?

3. Is it connected to the possibility to store Hits offline?

Thanks a lot for your help!