While Facebook and Instagram advertising work using the same Ads Manager, their respective advertising costs vary. With Facebook being around longer, having more data, and more ad placements compared to its younger adopted sibling platform, we do find that more often than not, Instagram is slightly more expensive than Facebook in some instances.
While that is the case, don’t let it deter you from exploring this lucrative and effective visual counterpart in the Facebook ecosystem. With fewer ad placements, increased competition for impression share, you may pay slightly more to use Instagram, but you may also pleasantly see it being much more cost effective than the results you’re getting with Facebook.