App Store Conversion Rateとは？

Conversion rate is arguably the most important ASO metric because it directly multiplies every impression into installs. If you double your conversion rate, you double your downloads from the same traffic. Apple provides conversion rate data in App Store Connect analytics, broken down by source (search, browse, referral, web referral). Google Play Console provides similar data through its store listing performance reports.

Benchmarks vary significantly by category. Utility apps and tools often see conversion rates of 30-50% because users have high intent. Games typically convert at 15-30% because users are more selective. Social and lifestyle apps fall somewhere in between. Traffic source also matters: search traffic converts 2-3x higher than browse traffic because search users have explicit intent.

Screenshots are the single biggest lever for improving conversion rate. They occupy most of the product page real estate and are the primary factor in a user's download decision. Studies consistently show that the first three screenshots drive 60-80% of the conversion impact since they appear in search results without tapping into the listing. Other conversion factors include your app icon (the first thing users see), ratings (apps below 4.0 stars see steep conversion drops), the first few lines of your description, and whether you have a compelling app preview video. A/B testing through Apple's Product Page Optimization or Google's Store Listing Experiments lets you measure the conversion impact of changes scientifically.