App developers
In-app ad spots — rewarded video, interstitial — bought inside mobile networks rather than on the open web, and what the directory has actually read about how they price.
Which channel usually fits
In-app advertising is its own channel here, separate from the mobile web: a rewarded video or an interstitial runs inside an app's own SDK, not in a browser, and is bought through mobile ad networks and DSPs rather than a publisher's own site.
How you'll actually buy
Almost entirely through a network or DSP account — an application to open one, then an auction or a negotiated deal once you are in. A handful take a signed contract instead. Self-serve in the sense of a card and no application is rare on this channel; check the listing's entry route before assuming you can start today.
What you'll be asked for
An SDK integration
In-app ad spots run through the network's own SDK in your app — this is a build step outside anything a listing can show.
A way to measure the install
Where a network prices by install, it needs an attribution setup on your side before a number means anything.
An application or a sales conversation
Most in-app sellers here take an application or a call rather than a card — build the lead time into a launch plan.
What to check first on a listing
The buying method
Whether it is an auction inside a network account, a negotiated deal, or a signed contract — the three doors this channel actually has.
What it prices by, where stated
Per install, per impression, or a flat placement fee — read off the listing's rate rather than assumed from the format.
That it is actually in-app
A network selling mobile web banners is a different buy from one selling a rewarded video inside an app — the channel on the listing says which.
Sellers with a recorded in-app ad spot
Sellers with a named ad spot on the App channel, ordered by audience, biggest tracked first. None of them currently publish a number for it — every one prices by auction or on request, which is a fact about this channel checked against the data, not a gap in this list.
Questions
Is in-app advertising self-serve?
Rarely in the card-and-go sense. Most in-app sellers here take an application or a sales conversation before you can run anything — the listing's entry route says which door a given seller actually uses.
Why don't these sellers publish a cost-per-install number?
Because none of them has, as far as this directory has read — every in-app ad spot tracked here prices by auction or negotiation instead. That is stated rather than hidden: a blank rate is a checked absence, not a free ad spot.
How is in-app different from mobile web advertising?
In-app runs inside an app's own SDK — a rewarded video or an interstitial between screens. Mobile web is the same display and video advertising a desktop browser gets, just on a smaller screen; it is tracked under the Web channel, not App.