Two iPhones, same Apple ID

I have a question concerning your advice. If I do that, will it delete all the previous messages that were shared to the other phone? And also the pictures in photo stream?

Also, if the person change apple ID after noticing the messages were being shared; is it possible they still are?

Hi, I have 2 iPhones and and an iPad. If I wish to erase an app from one of my phones, will it erase that app on the other devices?

Yes, you could use the same Apple ID for iTunes & App Store purchases (Settings > iTunes & App Store), but have to use two different iCloud accounts for email, calendar, contacts, backups, photos etc. (Settings > iCloud).

You have to either stop syncing your contacts with iCloud or migrate one of the two phones to a separate iCloud account with a different ID. (You can continue to share the same ID for iTunes; it doesn't need to be the same as the ID you use for iCloud.)

To migrate to a new account, first decide which phone will be moving. On this phone, if you have any photos in photo stream that you want to keep on the phone, save these to your camera roll by opening the photo stream album in the thumbnail view, tapping Edit, then tap all the photos you want to save, tap Share and tap Save to Camera Roll.

Once this is done, go to Settings>iCloud, scroll to the bottom and tap Delete Account. (This will only delete the account from this phone, not from iCloud. The phone that will be keeping the account will not be effected by this.) When prompted about what to do with the iCloud data, be sure to select Keep On My iPhone. Next, set up a new iCloud account using a different Apple ID (if you don't have one, tap Get a Free Apple ID at the bottom). Then turn iCloud data syncing for contacts, etc. back to On, and when prompted about merging with iCloud, choose Merge. This will upload the data to the new account.

Finally, you will then have to go to icloud.com on your computer and sign into each iCloud account separately and manually delete the data you don't want from each account (such as deleting your husband's contacts from your account, and vice versa).

If you don't want to share Contacts go to Settings > iCloud and turn OFF Contacts.

If you don't want Apps loaded on one device to appear on the other go to Settings > iTunes & App Stores and turn OFF sutomatic downloads for Apps.

No.

Thank you

You are welcome.