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Sorrel

Health · Mobile app

A 90-day creator program that halved cost per install.

Coaches with real clients replaced polished ads. Installs climbed while CPA fell by more than half.

Client
Halcyon Fitness
Duration
90 days
Platforms
TikTok · YouTube · Instagram
@kofi.lifts
Cost per install
-52%
App installs
146k
Day-30 retention
34%
The challenge

Halcyon’s glossy studio ads looked expensive and converted like it. Installs were steady but day-30 retention sat at 19%, so the cost per active user was climbing every month.

Our approach
01

Coaches, not celebrities

We recruited working trainers who already filmed their sessions, and gave them a 12-week program to follow on camera.

02

Progress as the hook

Week-by-week check-ins turned one sponsored post into a series viewers came back for.

03

Retention in the brief

Creators showed the app’s rest-day features, which brought in users who stayed for the plan, not just the workout.

Creators on the program

@kofi.lifts

Fitness · 611k followers

@vera.fits

Fashion · 207k followers

@lou.styles

Fashion · 322k followers

“We stopped paying for attention and started paying for trust. The numbers followed.”

Priya Raman — VP Marketing, Halcyon