Persistent revenue that respects the workflow.
A persistent rectangular unit anchored to an edge of the screen or placed inline within content. Banners are the steady layer under full screen formats: modest per impression, dependable in volume, and easy on the product.
Illustrative placement
What it is.
A banner is a persistent rectangular ad unit, anchored to the top or bottom of the screen or placed inline in feeds and lists. Sizes cover the standard banner, the medium rectangle (MREC) at 300x250, and adaptive banners that size themselves to the screen width. The unit stays while the user interacts with the app, which is both its strength and its whole design constraint.
The mechanics, in order.
Placement declared
Anchored or inline, with the adaptive flag set where the app wants screen-fitting sizes.
Auction on load and refresh
The unit auctions on first load, then again at each refresh interval you configured, within policy ranges.
Rendered in layout
The banner occupies its reserved space. Inline units flow inside feeds; anchored units hold their edge without overlapping content. Where a winning source does not support adaptive sizes, the largest fixed size that fits serves in its place.
Refresh trades against viewability
Faster refresh raises impressions and lowers per-impression viewability. The right setting is found per app, not assumed.
Where this format belongs.
Top or bottom anchoring
The dependable default for utility apps. Reserve the space in layout so content never jumps when the unit loads.
Inline in feeds and lists
Native-feeling positions inside scrolling content, with the labeling rules of the publisher policy in force.
Utility and content apps
Where full screen formats would fight the workflow, banners carry monetization without touching the task.
Under full screen formats
As the steady layer beneath rewarded and interstitial placements, covering sessions between the big moments.
The numbers that ship.
Dimensions, weight and refresh ranges, per size
Per-size dimensions, file weight limits and allowed refresh ranges live in the banner spec table in the docs, so your layout and refresh settings are built against current numbers.
The rules this format is held to.
Banners must not overlap content, must not move layout after load, and must remain clearly separated from interactive app elements. Accidental clicks are a placement defect, and the publisher policy treats them as one.
What each number tells you.
Viewability
The share of the unit actually seen. The number refresh decisions trade against, and the one buyers price first.
eCPM by refresh setting
Read eCPM alongside refresh rate per placement. The optimum balances impression volume against per-impression value.
The steady layer, placed with intent.
Tell us your app type and layout. Onboarding will suggest anchored versus inline placements and a refresh range to start from.
Anchored · inline · MREC · adaptive