Best pay per click advertising platforms: the ones that genuinely charge per click, and what each is best for
Half the platforms sold as PPC are bought per thousand impressions. Here is which auctions actually charge for a click, what each one is good at, and what it takes to open an account on it.
Published by AI Knows Us · Updated 21 October 2026
Pay per click means you are charged when somebody clicks, and a surprising number of platforms sold under that heading charge by the thousand impressions instead. The distinction decides your reporting, your minimum sensible budget and how quickly you can tell whether it worked. So separate the auctions that charge for a click from the ones that charge for attention, then pick inside the group you actually need.
The platforms that charge for a click
| Platform | What the click is worth buying for | What it takes to start |
|---|---|---|
| Google Ads | Demand that already exists, expressed as a typed query | An account and a card. Google publishes that the bid amount is up to you |
| Microsoft Advertising | The same intent at a different audience mix, plus retail and connected television in one login | An account, and campaigns can be imported from an existing Google account |
| Amazon Ads, sponsored products | Placement at the point of purchase, next to the product | Amazon publishes that sponsored ads remain cost per click with no minimum spend |
| Meta, Facebook and Instagram | Audiences described by behaviour rather than by a query | A business account, a page and a pixel. Bought self serve |
| LinkedIn Ads | Reaching people by what they do for a living | LinkedIn publishes over one billion active professionals, and that you can start with any budget and stop at any time |
| Reddit Ads | Category conversation and niche interest at low cost per click | Self serve account. Creative that reads as native or it is ignored |
| TikTok Ads | Reach among people who have never heard of you | Self serve, with video as the entry requirement rather than money |
Two of those are demand capture and five are demand creation, and the difference matters more than the platform names. Capture first if people search for what you sell, because it is the cheapest honest test of whether your offer converts at all.
The platforms often listed as PPC that are not
Display and programmatic inventory, connected television, audio and most video reach are bought per thousand impressions, not per click. StackAdapt, for example, publishes its pricing models as cost per thousand, cost per click and cost per engagement, and publishes that it has no minimum advertising spend requirement, read on its own platform page on 21 October 2026. That mix is typical of the programmatic layer: a click price is available, and the inventory is priced and judged on impressions. Microsoft publishes its own product set spanning search, shopping, display, video and connected television, which is why one login can cover both halves and why a platform list by company name misleads.
The full map of every platform worth knowing, grouped by the demand it sits next to, and the three buying routes behind them, is in paid advertising platforms, the main ones and the three ways they are bought. What you actually pay inside the biggest of these auctions is in Google AdWords pay per click and how the auction decides it, and the split against organic is in Google Ads against SEO and how to split the budget.
The order to add platforms, and why
- Start where the demand exists. A small search account on your brand terms and your five best commercial queries.
- Then retargeting, which is the lowest cost conversion available on any platform.
- Then one platform that creates demand. One, not three, with its own metric and enough time to read it.
- Then retail media, if somebody buys your product on a marketplace. Feed quality decides the result more than the bid does.
- Then reach buying, which belongs after you have measurement that can see an effect arriving as something other than a click.
What advertisers ask when choosing a PPC platform
Is there a minimum spend to start?
On the self serve auctions, no. Google publishes that bidding amounts are up to you and that you should set a bid based on what a click is worth. LinkedIn publishes that you can start with any budget and stop at any time. Amazon publishes that sponsored ads carry no minimum spend. The real minimum is whatever buys enough clicks to produce a readable number of conversions.
Should I run two search platforms at once?
Once the first one is stable, yes, because campaigns can usually be imported and the second auction is less contested. Keep the budgets and the targets separate so one does not flatter the other.
Which platform is cheapest per click?
The question misleads. A cheap click on an audience that was not looking costs more per sale than an expensive click from somebody typing your category. Compare cost per action and keep brand terms out of the average.
How do I tell a click price from an impression price in a proposal?
Ask what unit the invoice is in and ask to see a placement report by domain. A click unit with a search terms report means an auction you can control. An impression total with no breakdown means somebody is buying on your behalf.
The auction that has no bid, and how to measure it
Every platform above sells a position that money can move. There is a new place buyers now go where money cannot move anything, and it looks increasingly like the first step of the journey the auctions used to own. A buyer asks ChatGPT, Gemini, Perplexity, Claude or Google AI Overviews who to use for what you sell, and the answer names two or three businesses, assembled from reviews, roundups, directories and forum threads rather than from an ad account.
We do not sell advertising, media buying or PPC management, and nothing here suggests buying us instead of an ad platform. The adjacent category, measuring whether assistants name your business at that moment, is ours. On the criterion used throughout this page, what a provider publishes about how it charges and what it takes to start, AI Knows Us publishes both: five surfaces named, one credit as one buyer question asked on one app once with a Claude check published as three, a scan on your own domain that needs no account, and United States prices rendered on the pricing page from 149 dollars a month. Where a rival publishes more, said plainly: Ahrefs Brand Radar publishes a per check overage rate and a wider platform list including Copilot on ahrefs.com/brand-radar, read 21 October 2026, where we publish no overage rate, and Profound publishes up to nine answer engines on tryprofound.com/pricing, read the same day, against our five.
Open the account on the platform your demand sits in, by all means. Then ask your buyer's own question in one assistant, because an auction only pays for people who are still shopping, and that answer is where a growing share of them stop shopping.
One format sits inside a search account and is bought on impressions rather than clicks, which is why it confuses this comparison more than any other. The six formats, and why they are bought inside Google Ads, are in YouTube advertising, the six formats and why it is bought inside Google Ads.