If I restore my iPhone with a backup, will my messages in whatsapp still be there?

Since my iPhone 4S is having a few issues with iOS 5, I was told to restore my iPhone. Now, if I back up the iPhone a last time right before I restore it, will the current messages and chat histories in the app 'whatsapp' still be there after i restored the phone?

Yes it will be there after you sync it but you will need to be connected to the internet.

  • Will my old whatsapp convo still be there? I haven't been on whatsapp in around 4 months. I completely deleted the app and not too long ago an old friend said she sent me a picture on there around 2 months ago. If I reinstall the app will the conversation still be there? Also on my iPhone it's not letting me restore anything because I don't have enough iCould space. So does that mean I can't retrieve this conversation?
  • Will I still have my iphone backup if I restore my laptop? I need to restore my laptop because it has a buttload of viruses on it. I'm moving my important documents onto a 500gb flashdrive before I restore it but when it's restored will my iphone remain the same after syncing it or will it lose it's backup?
  • When you restore an iphone from itunes backup does it restore messages? I need to restore my iPhone 4S in iTunes, will I lose my messages or will it leave the messages from my most recent back up?
  • WHATSAPP BACKUP! Why can't i find the backup conversation button in chat settings? I need to backup my whatsapp convo to iCloud from my iPhone 4s, because i wanna transfer the chat history to my iPhone 5s… But somehow i can't find the "backup conversation" button in chat settings. I have alrdy downloaded the latest version of whatsapp… WHAT IS GOING WRONG?