The one difference that decides it
On Google the person typed “emergency plumber Bury”. On Instagram the person is looking at a friend’s photos. The first has a need and is choosing a supplier; the second has to be interrupted and persuaded that they have a need. Everything else about the two platforms — cost, creative, conversion rate — follows from that.
| Google Ads (search) | Facebook and Instagram ads | |
|---|---|---|
| The person is | Searching for it now | Not thinking about it |
| You target by | The phrase they typed, and location | Who they are, where they are, what they do; or a list of your past visitors |
| Cost model | Per click, auction on the phrase; from single figures to over £70 | Per thousand impressions or per click, auction on the audience; usually far cheaper per click |
| Conversion rate | Higher: they wanted it | Lower: they were interrupted |
| Creative | Text that repeats the phrase and states a price | A photo or video that stops a scroll |
| Time to learn what works | Days; the search terms report is explicit | Weeks; audiences and creative need testing |
| Tracking | Conversion tracking via tag or GA4 import | Pixel plus Conversions API; browser-only tracking misses a lot |
| Best first use | Buying phrases with matched landing pages | Retargeting site visitors who did not enquire |
Source: Cybrial. Neither platform publishes a price list; click prices are set by auction and vary widely.
Which first, by business type
| Business | First | Then | Why |
|---|---|---|---|
| Trades and urgent services (plumber, locksmith, paving quotes) | Meta retargeting | The need exists before the search; nobody scrolls for a plumber | |
| Professional services (solicitor, accountant, consultant) | LinkedIn or Meta retargeting | Considered, searched-for, high value per client | |
| Visual products (food, sweets, furniture, clothing) | Meta | Google Shopping | The photo sells it; discovery beats search for discretionary buys |
| Local retail or hospitality | Meta, tight radius | Google for “near me” via the Business Profile | Awareness and offers to people nearby |
| E-commerce with a catalogue | Google Shopping | Meta retargeting and prospecting | Product searches are high intent; retargeting recovers abandoned baskets |
| Events, launches, seasonal offers | Meta | Google for the searches the event creates | Time-limited and visual |
Source: Cybrial’s working defaults with clients; the exceptions are real and the test is cheap.
The sequence that uses both without wasting either
- Fix the website so it converts. Every channel multiplies the conversion rate; at one in a hundred, both are expensive.
- Set up tracking on both: conversion tracking for Google, pixel and Conversions API for Meta, key events in GA4. Without it you are optimising to each platform’s own scoreboard.
- Start with the channel the table says, on a small budget, to a matched landing page, for two to four weeks.
- Add the other as a supporting role: Meta retargeting for a Google-first business; Google Shopping or Business Profile for a Meta-first one.
- Read cost per real enquiry or sale, by channel, from your own data. Move budget to whichever is cheaper per enquiry, and revisit quarterly.


