Why You Should Never Boost Posts from the Facebook or Instagram App

If you run a business in Cornwall and you have ever tapped the blue "Boost Post" button on Facebook or Instagram, you are not alone. It is probably the single most common paid social mistake I see from business owners across Newquay, Truro, Falmouth and beyond. It looks simple, it feels quick, and it gives you the satisfying impression that you are doing something. But in almost every case, you are leaving money on the table, and if you are on an iPhone, you are actively handing some of it to Apple.

Let me be clear upfront: there are no circumstances where boosting from the app is the right call. That might sound strong, but after years of running paid social campaigns for businesses in Cornwall and the wider UK, I have not found a single scenario where the in-app boost outperforms a properly built campaign in Meta Ads Manager. Here is why.

What "Boosting" Actually Is

When you boost a post from Facebook or Instagram, you are paying Meta to show that post to more people. It takes about 30 seconds to set up, you pick a rough audience, a budget and a duration, and off it goes. For a business owner who is already juggling a thousand things, that simplicity is genuinely appealing.

The problem is that boosting is a stripped-back, simplified version of what Meta's advertising system can actually do. It is the tourist menu at a restaurant, available, easy to navigate, but not remotely close to the full offering. And unlike a tourist menu, the simplified version actively costs you more for less.

Reason 1: Ads Manager Gives You Far More Control

Meta Ads Manager is the proper advertising platform, the same tool that professional agencies and in-house marketing teams use. The difference in capability between a boost and a campaign built in Ads Manager is enormous.

Targeting that actually makes sense

When you boost a post, you can pick a broad interest category and a rough location. In Ads Manager, you can build Custom Audiences from your website visitors, your customer email list, or people who have previously engaged with your content. You can then create Lookalike Audiences, Meta finds people who share characteristics with your best existing customers and shows your ads to them instead.

For a trade business in Cornwall, a builder in Redruth, a plumber in St Austell, a landscaper in Penzance, this is the difference between showing your ad to "people interested in home improvement" (a boost) and showing it to people who match the profile of the customers who have already called and booked you (Ads Manager).

Choosing how Meta optimises your campaign

This is the part that most beginners do not realise matters, and it matters enormously. When you run an ad campaign, you tell Meta what outcome you want. In a boost, your options are limited to broad things like engagement, messages or website visits. In Ads Manager, you can optimise for specific conversion events, form completions, phone calls, purchases, lead submissions, and Meta's algorithm will learn over time to find people who are most likely to take that specific action.

If you are a hotel in Newquay and you want bookings, you want Meta optimising for bookings, not for people who will scroll past your post and double-tap it. Engagement metrics feel good but they do not pay the bills. Conversion-optimised campaigns do.

Campaign structure and testing

Ads Manager lets you run multiple ad sets within a campaign, each targeting a different audience or using a different creative. You can A/B test your imagery, your copy, your calls to action, and Meta will tell you which is performing. A boost is a single shot in the dark. A properly structured Ads Manager campaign is a learning system that improves over time.

Reason 2: If You Are on an iPhone, Apple Is Taking 30%

Most people have absolutely no idea this is happening, and when I explain it to clients it is usually met with a mixture of disbelief and frustration.

When you boost a post using the Facebook or Instagram app on an iOS device, Apple classifies it as an in-app purchase. Under Apple's App Store rules, in-app purchases are subject to a 30% commission that Apple collects on top. So if you spend £100 on a boost from your iPhone, you are actually spending around £30 on Apple's margin and £70 on actual ads.

You get nothing extra for that 30%. Your ads do not reach more people. Your targeting does not improve. You are simply donating a third of your budget to one of the most profitable companies in the world because you tapped a button in an app.

"If you spend £200 a month boosting posts from your iPhone, you are giving Apple £60 of it every single month. That is £720 a year going straight to Cupertino."

The fix is simple: never use the app to run or boost ads. Use a web browser on your laptop or desktop, or if you are on mobile, use Chrome or Safari to access business.facebook.com rather than the app. The Apple tax only applies to purchases made through the iOS app, going through a browser bypasses it entirely.

How to Get Started with Ads Manager

I understand that Ads Manager looks intimidating at first. The interface is dense, the terminology is unfamiliar, and the sheer number of options can feel overwhelming if you are used to the simplicity of a boost. But the basics are not as complicated as they look, and the investment in learning them pays off almost immediately.

Here is a simple starting point:

• Go to business.facebook.com in a browser (not the app)
• Set up a Business Manager account if you have not already
• In Ads Manager, click "Create" and choose a campaign objective, for most Cornwall small businesses, "Leads" or "Traffic" is the right starting point
• At the Ad Set level, define your audience properly, location, age, interests or a Custom Audience if you have one
• At the Ad level, use high-quality imagery and copy that speaks directly to your ideal customer
• Start with a modest daily budget, even £5 to £10 a day, and let the campaign run for at least a week before making changes

If you are running paid social for a Cornwall business and you want to do it properly, with real targeting, real optimisation and not a penny going to Apple, Ads Manager is where you need to be. The boost button is designed to make Meta's advertising accessible to everyone. Ads Manager is designed to make it effective.

For a broader look at whether paid advertising or organic search is the right channel for your business, read Google Ads vs SEO for Cornwall businesses.