Case Study: Runtastic achieves 179% ROAS increase and 61% lower CPP with Adjust

Converting cross-app users with Audience Builder

Runtastic, a global portfolio of health and fitness apps, needed to turn users of its specialized satellite apps into paying subscribers for its Runtastic Results app and to speed up campaign launches for value‑based lookalike targeting. Key KPIs included cost per install (CPI), cost per purchase (CPP), registration‑to‑purchase (RTP) and 30‑day ROAS.

Using Adjust’s Audience Builder to segment active users and push those audiences into Facebook Custom Audiences (including LAL‑LTV lookalikes), Runtastic ran targeted cross‑promo video ads and value‑based lookalike tests. The Audience Builder approach raised 30‑day ROAS to +179% (versus +74% for the benchmark), improved RTP dramatically (male RTP ~9x, female ~6x), delivered positive ROAS in seven days, lowered CPP by 61.63%, and enabled faster, more efficient campaign launches that acquired higher‑value subscribers.

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