Onavo looks at the market share for app discovery apps

iOS app discovery service AppGratis is the most used discovery app among iPhone users, according to Onavo, a company that tracks data usage for users. Discovery apps have become a platform for other mobile developers to get their apps to stand out from the combined 1.5 million apps on the Apple App Store and Google Play. These discovery apps promote a paid app by featuring it for free or at a steep discount for a limited time. Paris-based AppGratis grabbed a 4.6 percent share of iPhone users as of February, which Onavo defines as the percentage of U.S. iPhone users who, within a 30-day period, open an app at least once.