Google and Meta are the two largest advertising platforms, but they do very different jobs. Understanding the difference helps you decide where to start, how to measure success, and when to use both.
Two different jobs
Google Ads, particularly search campaigns, reaches people who are actively looking for something. They've typed a need into a search box, and your ad offers an answer. This is demand capture.
Meta Ads, across Facebook and Instagram, reaches people based on who they are and what they're interested in, usually before they're actively searching. This is demand creation. Both are valuable, but they need different creative, different expectations, and different measures of success.
When Google fits best
Search advertising works best when people already know they need what you offer and search for it in predictable ways, as with emergency services, professional services, software categories, or specific products.
Because intent is high, conversion rates are often strong, but so is competition. Costs per click in competitive industries can be significant, which makes landing page quality and careful keyword selection essential.
When Meta fits best
Meta advertising suits products and services that people don't search for until they discover them: new products, lifestyle and consumer brands, events, and offers with strong visual appeal. Its targeting and creative formats make it powerful for building awareness and reaching specific audiences.
Results depend heavily on creative. The same audience can respond very differently to different images, videos, and messages, so testing creative is usually the biggest lever for improving performance.
Fix tracking before spending
Whichever platform you choose, accurate measurement comes first. Without it, both platforms optimise toward the wrong signals, and you won't know which campaigns are actually working.
- Define the conversions that matter: inquiries, calls, purchases
- Install and test conversion tracking for each platform
- Set up GA4 to compare channels consistently
- Use consistent UTM tags on every campaign link
- Agree how lead quality will be fed back from sales
Budget for learning
New campaigns need time and data to stabilise. Spreading a small budget across many campaigns, audiences, and platforms usually produces too little data to learn from.
It's generally better to concentrate budget on one platform and a few well-structured campaigns, learn what works, and expand from there.
The landing page matters as much as the ad
An ad's job is to earn a click; the landing page's job is to convert it. Sending paid traffic to a generic homepage wastes much of what you pay for. Each campaign should lead to a page that continues the ad's message, answers the obvious questions, and offers one clear next step.
Running both together
As campaigns mature, the platforms often work best together. Meta builds familiarity with people who may search later, and Google captures them when they do. Retargeting on either platform can bring back visitors who didn't convert the first time.
The key is to measure each platform against the job it's doing, rather than expecting awareness campaigns to perform like search campaigns.