Interstitial, rewarded, interactive, and emerging app-ad formats

Publisher guidance reinforces gradual ad introduction, monitoring fill/render/ARPDAU, and prioritizing natural breaks or user-initiated rewards. Android implementation guidance reiterates preloading, clearing ad references after dismissal, test IDs, clear close controls, and natural transitions, but offers no campaign outcome evidence. Fetch’s holiday microseries launch cites 96% completion in early tests, without evidence on incremental sales, retention, reach, or reward economics; do not use it as a benchmark.