Does app file size affect App Store search ranking?

Not directly — file size isn't a documented ranking factor on its own, but a large download size can indirectly hurt ranking by suppressing install conversion, and conversion rate is a real ranking signal.

A user on a slow connection or limited storage who sees a large download size before installing is more likely to abandon the install, which shows up as a weaker conversion rate for that search impression. That's the indirect path, not a direct size penalty in the algorithm.

This matters most for categories where users compare several similar apps at the point of installing, since a smaller competing app has a real conversion edge in that specific moment, independent of any keyword or metadata difference.

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