Case Study: Bloom achieves 100% ROI and improved App Store Optimization with Sprout Social Influencer Marketing

How Influencer Marketing can be used as an App Store Optimization (ASO) tactic

Bloom is a digital cognitive behavioral therapy app that wanted to increase visibility in the App Store and drive paid member sign-ups around New Year’s resolution season. To tackle ASO and first-time user acquisition, Bloom hired Sprout Social Influencer Marketing to run its first influencer campaign on Instagram as a user‑acquisition tactic.

Sprout Social Influencer Marketing identified thousands of U.S.-based influencers matching Bloom’s target (women 25–55), ran a three-week email drip with A/B testing to recruit 75+ creators who posted honest reviews, and amplified reach through influencer content. The campaign generated over 18 million impressions, delivered a 100% ROI on paid sign-ups, boosted organic searches and non-branded App Store clicks (improving ASO), and helped Bloom scale paid subscribers rapidly.

Bloom