D7 or D28 IAP ROAS campaigns? The answer is both

Unity is framing IAP ROAS optimization as a two-window problem rather than an either/or choice. D7 campaigns are aimed at players who convert quickly, while D28 campaigns are meant to capture users whose spending behavior emerges later. For live games with uneven monetization curves, that split can matter more than squeezing one blended metric.

The practical angle is attribution and bidding strategy. If you only optimize for short-term return, you can undercount players who look weak in the first week but become valuable by day 28. If you only wait for the longer window, you may miss the fast payers that help campaigns stabilize early. Running both lets UA teams compare cohorts and tune spend against different payback horizons.

Unity says Vector is using game creation data to improve how those cohorts are optimized. That suggests the system is leaning on signals from how games are built and operated, not just raw ad performance, to predict which users belong in each bucket. The exact model details and rollout scope haven’t been disclosed, but the direction is clear: more granular ROAS optimization for mobile monetization teams.

For developers, this is another reminder that monetization timing is as important as monetization volume. Teams with long-tail spenders, battle passes, or progression-heavy economies may benefit from separate acquisition strategies for early and late converters, especially when UA budgets are tight and every attribution window changes the story.