Best mobile advertising companies compared and which of them actually owns the inventory

Ask any mobile advertising company one question first: where do the impressions come from. Three different answers are possible and each one is a different business. Some companies own the inventory, because they operate the apps or the properties the ads appear in. Some resell inventory they buy in bulk from others. Some buy nothing at all and instead operate a seat on your behalf, on platforms you could in principle access yourself. All three legitimately answer a search for a mobile advertising company, they are priced differently, and the one you want depends on whether you need reach, efficiency or control.

The three kinds, and what each is good at

Kind	Where impressions come from	Good at	The thing to check
Inventory owner or network	Apps and properties it has direct relationships with	Scale in specific app categories, and formats the publisher has built for	Which apps, by name, and what share of delivery each represents
Reseller or aggregator	Bought wholesale from exchanges and other networks	Filling a large plan quickly at a stated price	How many hops sit between your money and the publisher
Managed buyer or agency	Nothing. It operates a platform seat for you	Control, measurement discipline and portability	Whose account the seat is in, and the fee on top of media

The number of hops is the one that moves the economics most, and it is the one least often volunteered. Every intermediary between your budget and the publisher takes a share, and the share is not always disclosed. A company that will tell you plainly that it resells, and name its sources, is easier to buy from than one that describes itself as having direct relationships without naming any.

The criterion to rank on, applied to everybody

Rank every candidate on what it will disclose in writing about delivery, before you spend anything. Specifically:

1. A named app or site list for your campaign, delivered after the flight rather than promised before it, with spend against each.
2. The gross and net position. What you pay, what reaches the publisher, and what the difference is called.
3. Whose accounts hold the campaign, the creative and the measurement data.
4. What it will accept as the success metric, and whether that metric is one you can verify in your own analytics rather than only in its dashboard.
5. Its position on invalid traffic. What it filters, who verifies the filtering, and what the credit process is when you find something.

This test will reorder a shortlist, because disclosure correlates poorly with scale. We publish no ranked list of named mobile advertising companies on this page, and the reason is that the ranking is produced by these five answers for your campaign rather than by any general ordering we could assert.

In app inventory is most of mobile now, which changes the questions

Most mobile impressions are in app rather than on mobile web, and in app inventory behaves differently in two ways that matter at the briefing stage.

First, the creative formats are set by the app. A rewarded video, an interstitial and a native unit are each shaped by how the app is built, which is why a single creative set rarely runs everywhere without rework. The native case in particular is a components job rather than a finished advertisement, and our page on native advertising on mobile, where you supply components and the publisher renders the advertisement explains what you are actually handing over.

Second, measurement in app does not work the way it does on the web. Attribution runs through a mobile measurement partner rather than through a browser, which means the setup is a project with a cost and an owner, and it has to exist before the first dollar is spent rather than after.

Game inventory is a large share of what is available and is bought in several distinct ways, including placements inside the game world rather than around it. Those are set out separately in our page on advertising in video games, the mobile network buy and the in world placement.

When you do not want a mobile advertising company at all

Two common briefs are better served by something else, and it is worth checking before you shortlist.

If the goal is installs of your own app, the specialist you want is an app marketing agency rather than a mobile advertising company, because app store optimisation, retention and creative testing matter as much as the media buy. The five jobs that work covers, and the questions that separate candidates, are in our page on how to build a shortlist of mobile app marketing agencies.

If the goal is to reach people who have already given you their number, that is messaging rather than advertising, with a consent regime of its own and a very different cost per contact. The vendor by vendor position is in our comparison of SMS and text marketing platforms.

And if what you want is a buying seat you control, with the agency model priced separately from the media, that is the programmatic purchase rather than a network one, and the seats and models are compared in our page on programmatic advertising platforms and companies.

Fee models and the one to cap

You will meet four. A flat CPM, where the company takes the delivery risk and you take the quality risk. A cost per install or cost per action, which moves the risk to them and gives them a reason to find the cheapest users rather than the best ones. A percentage of media, which is the standard managed buying fee and gives the buyer a reason to spend more, so cap it. And a flat management fee, which is the cleanest to reconcile and the hardest to negotiate at small budgets.

None of these is the right answer in general. What makes any of them safe is that the metric is defined precisely, measured somewhere you can see, and tied to an outcome that matters to your business rather than to a step on the way to it.

Questions buyers ask about mobile advertising companies

How do I tell an inventory owner from a reseller?

Ask for the named app list with spend against each, for a past campaign, with the client removed. An owner can produce it from its own systems. A reseller can usually produce something, and the list tends to be long, unfamiliar and unevenly distributed, which is the signature of bought supply.

Is a lower CPM a better deal?

Only against the same quality of impression, and quality in mobile varies more than price does. Compare on cost per the outcome you care about, measured in your own analytics, and treat CPM as a diagnostic rather than a decision.

Who should own the measurement partner account?

You. It is the one account that lets you compare two suppliers on the same basis, and if a vendor holds it, switching vendors means losing the history you would need to judge the switch.

What is a fair reporting cadence?

Weekly during a flight, with a post campaign report that includes the placement list. A monthly summary without placements cannot be audited, and the placement list is the part most often left out.

How much creative does a mobile campaign need?

More than most plans budget for, because formats differ by app and creative wears out fastest in this channel. Ask each candidate how many variants a month the fee includes and treat a vague answer as a cost you will meet later.

The mobile moment that is not an impression

Every company in this market measures a moment when somebody sees an advertisement. There is a different mobile moment that none of them measures, and it happens on the same device: somebody opens an assistant, types the thing they want, and reads a short answer that names two or three businesses. No impression is bought, no placement is sold, and nothing in a mobile advertising report describes it. Whether your business is one of the names is checkable, and AI Knows Us checks it across ChatGPT, Gemini, Perplexity, Claude and Google AI Overviews. Where a rival is stronger, say it plainly: tryprofound.com/pricing, read on 21 October 2026, publishes up to 9 answer engines tracked plus SSO/SAML and SOC 2 compliance on its enterprise tier, against the five surfaces we read and a pricing page that renders neither control.