[Offline play]

Ok, thanks for the answers. It may be weird but I only play games in areas where I have no internet. Never play at home.

So, if I like this game I would buy everything by IAP.

I just had to be sure I would not miss anything (f.e. rewards) because I always play games where I am offline.

[Offline play]

If the game is online when you make that purhases... Yes. You just don't get anything new when playing offline. No gold, no rewards etc...

Ok, so you can buy everything you can acquire playing online, offline in IAP?

[Offline play]

If I purchase the whole bundle with real money, will I be able to acces it offline? 

I'm playing the game on an ipad.