First things first: they're not really separate
When you open Meta Ads Manager (Meta’s ad management tool), you won’t find Facebook and Instagram as separate systems. In a single ad setup you can select both platforms and manage your budget from a shared pool. So the question “Facebook or Instagram?” is usually the wrong one to ask. The right question is: where do your customers spend more time — and what do you want to show them?
Audience difference: who’s where?
- Facebook: Higher concentration of users aged 30+. Strong for local services, brands targeting 35+ audiences, and businesses selling to other businesses (B2B).
- Instagram: Predominantly 18–34 age group. Attractive for visual products, fashion, beauty, food and drink, and lifestyle industries.
- Reels (short video): Works on both platforms. Effective for businesses that want to showcase their product or team in 15–60 second clips.
- Messenger (Facebook’s direct messaging inbox): A format where someone clicks your ad and messages you directly. A practical channel for local businesses looking to receive bookings or quotes.
2 in 3 users
According to Meta, the large majority of active Meta users have accounts on both Facebook and Instagram — meaning you can reach the same person across both platforms.
How to think about it by industry
- Restaurant / Café: Instagram is strong for visual content; Facebook is effective for reaching local audiences with events and promotions. Both work well together.
- Jeweller / Fashion / Boutique: Instagram first. Product photography and short video directly influence purchase decisions.
- Dentist / Clinic / Local Service: Facebook primary (higher 35+ concentration). Messenger ads offer a practical route for appointment bookings.
- Small e-commerce: Both platforms are viable. Advantage+ Shopping (Meta’s AI-powered product ad system) automatically balances budget between the two.
- B2B / Consulting: Facebook first. Meta lets you reach a broader audience at a more accessible budget.
When starting out, don’t split your budget manually. Tell Meta’s system to run on both platforms and let the algorithm shift spend toward whichever performs better. Once you see the results, you can narrow focus to a specific platform if you choose.