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The Core Difference Between the Two Platforms

Google Ads and Facebook Ads operate on fundamentally different principles. Google Ads is intent-driven: your ad appears when someone searches for a product or service you offer. They already want something — you’re raising your hand to say you can provide it.

Facebook Ads is interruption-based: your ad appears in someone’s feed based on who they are — their age, location, interests, and behaviours. They weren’t necessarily looking for you, but they match your ideal customer profile.

Neither is better in absolute terms. The right choice depends on what you’re selling, who you’re targeting, and where in the buying journey your customer is.

Google Ads: What It Does Well

Facebook Ads: What It Does Well

When Google Ads Is the Right Choice

Google Ads tends to win when there is clear, existing demand for what you sell. If people are already searching for your product or service, showing up at the moment they’re looking is a highly efficient way to drive conversions.

It works particularly well for:

Local service businesses (plumbers, dentists, accountants) where people search for solutions in the moment of need. – E-commerce where Shopping campaigns can show your product image, price, and brand directly in search results. – High-intent B2B where a buyer is actively researching solutions and comparing providers.

The pay-per-click model also keeps costs tied to actual engagement — you only pay when someone clicks your ad.

When Facebook Ads Is the Right Choice

Facebook Ads is more effective when you need to create demand rather than capture it. If your product is new, niche, or not something people typically search for, you need to get in front of the right person and make them aware they have a problem you can solve.

It works well for:

E-commerce brands with visually appealing products where creative imagery or video drives impulse purchases. – Lead generation for services targeting specific demographics — Facebook’s targeting lets you narrow down to, say, homeowners aged 35–55 in a particular region. – Brand awareness campaigns where the goal is reach and recognition rather than immediate conversion. – Retargeting existing website visitors or email list subscribers who are already familiar with your brand.

Should You Use Both?

In most cases, yes — but not necessarily at the same time. For businesses starting out, I usually recommend focusing budget on one platform first and getting it working before expanding. Google Ads is often the better starting point if there’s active search demand for your product or service. Once that’s generating consistent returns, Facebook can be layered in for retargeting and awareness. Running both from day one spreads budget thin and makes it harder to diagnose what’s working.

How to Decide Which Platform to Start With

  1. Check search volumeUse Google Keyword Planner to see whether people are actively searching for what you sell. If monthly search volumes are healthy, Google Ads is likely a strong fit.
  2. Define your goalIf you want immediate conversions from people already looking for you, lean toward Google. If you want to build awareness or target a specific demographic, Facebook may be the better entry point.
  3. Consider your creative assetsFacebook Ads require strong visual creative — images, video, and compelling copy. If you don’t have those assets, Google Search Ads are text-based and easier to launch quickly.
  4. Assess your budget realisticallyGoogle Ads in competitive industries can be expensive per click. If your budget is tight, Facebook can sometimes offer lower cost-per-click in certain sectors — but always test for yourself rather than assuming.
  5. Think about your sales cycleShort sales cycles (book a call, buy now) suit Google. Longer cycles where trust-building matters first may benefit from Facebook’s ability to keep your brand visible over time.

Costs: What to Expect from Each Platform

Cost varies enormously by industry, targeting, and ad quality — neither platform has a fixed price. Both operate on auction-based systems where you compete against other advertisers for placement.

On Google Ads, you pay per click. In highly competitive industries, cost-per-click can run high. In less contested sectors, it can be far more affordable. Your Quality Score directly influences what you pay — better ads cost less.

On Facebook Ads, you can pay per click or per impression. Costs have risen in recent years as more advertisers compete for space. Privacy changes — particularly iOS tracking restrictions — have also reduced targeting precision and made conversion measurement less straightforward.

The honest answer: neither platform is cheap if you’re targeting genuinely valuable customers in a competitive market. What matters is return on ad spend, not the raw cost-per-click.

Frequently asked questions

Is Google Ads better than Facebook Ads?

Neither is universally better. Google Ads is more effective when people are actively searching for what you sell. Facebook Ads is better for creating awareness and targeting specific demographics. The right choice depends on your product, audience, and goal — and many businesses use both.

Can I run Google Ads and Facebook Ads at the same time?

Yes, and many businesses do. However, if budget is limited, it’s usually better to master one platform first. A common approach is to start with Google Ads for direct response, then add Facebook for retargeting once the core campaign is profitable.

Which platform is cheaper to advertise on?

Cost varies by industry, targeting, and competition on both platforms. Neither is consistently cheaper. What matters is cost-per-acquisition — the amount you pay to win a customer — not the raw cost-per-click.

Does Facebook Ads work for B2B businesses?

It can, but it requires careful targeting and patience. LinkedIn is often a stronger B2B option for high-value professional audiences. Facebook works better for B2B where your buyer can be identified by demographic traits rather than job title or industry.

How have privacy changes affected Facebook Ads?

iOS privacy changes have reduced Facebook’s ability to track user behaviour across apps and websites, making audience targeting less precise and conversion tracking less accurate. It’s an ongoing challenge for Facebook advertisers, though Meta continues to adapt its measurement tools.

What budget do I need to get started with paid ads?

There’s no hard minimum, but meaningful data takes spend. A rough guide: allow enough budget to generate at least 30–50 clicks per week on Google Ads, or run Facebook campaigns for one to two weeks before drawing conclusions. Spreading too little budget too thinly makes it impossible to optimise.

Not Sure Which Platform Is Right for You?

I help UK businesses work out where to put their paid media budget — and then manage the campaigns properly. If you're trying to decide between Google Ads and Facebook Ads, or you're already running ads and not seeing the results you'd expect, let's have a conversation.

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