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Viewability Rate

Viewability rate is the percentage of time an ad was viewable. Essentially, it determines what percent of a mobile app’s measurable impressions were actually accessible and viewable to potential customers. A viewed impression is defined as covering at least 50% of the user’s screen for more than one second (two seconds for a video). The view ability rate calculation is:

(total measured viewable ad impressions) / (total measured ad impressions) x 100

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