If I login my new Apple ID on old Iphone, will all my apps disappear?

I have always been using my husband's Apple ID on my Iphone to download apps. Recently I've opened my own Apple ID. But if I sign out my husband's Apple ID on my Iphone and sign in with my own Apple ID, will all the apps on my Iphone disappear? Or will they all stay on my Iphone? Do I have to repurchase those apps (eg. Whatsapp?) Thanks!

Added (1). Great, but when say one of my old app that's been installed with my husband's Apple ID needs an update, can I use my new Apple ID to update it or does it have to be the same as the one used when installed (namely my husband's Apple ID)?

Whatsapp is free for the first year, and it's based on your phone number, not your ID login.

No! I do this all the time. I have 2 different Apple IDs and I always switch between the 2. It does not delete the apps.

The apps wouldn't disappear but they may not work or at least not be able to update since you are using a different Apple ID. Basically, as far as Apple is concerned, you are someone completely different, not the same person using a different log in.

There are family plans available now that may help in this sort of situation though. Should look into that.