Can you add third party apps to my site?

[Mizis Boutique]

Well I solved the problem of the unpaid order now I have another. I keep getting these promotion emails about adding chat apps and contact apps to my site. Can you do that? Can you add apps to your store from a third party>

[iCraft Admin]

No, that won't be possible.

[Mizis Boutique]

ok. Thank you.