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S1 E1

28.01.26

Why Health & Fitness App Growth Is Harder Than It Looks

In this episode of Growth by Design, we sit down with Vasyl Sergiienko (ex-Meta, Google) to unpack why many classic growth playbooks break in health & fitness — and what actually works instead.

Motivation drop-offs, seasonality, creative messaging, web-to-app, and where AI genuinely helps — a deep dive into what makes this category structurally different.

What you'll learn

  • Why health & fitness growth behaves differently from other app categories

  • How motivation drop-offs and seasonality shape sustainable growth strategies

  • What really works in health & fitness creatives — and where teams oversell

  • How poor messaging hurts retention and monetization later

  • Lessons from the early web-to-app era, and when it still works today

  • Where AI truly helps in creative strategy (and will it replace creative producers?)

  • What growth teams are optimizing today that will look naive by 2026

  • How founders can design for sustainable growth from day one

Timestamps

00:00
Intro — Growth by Design & why health & fitness growth is hard
01:15
Vasyl's career journey & entering growth
03:30
Growth at scale: big companies vs small teams
06:30
Why health & fitness apps are different
10:15
Motivation drop-offs, seasonality & realistic growth
14:20
What classic growth playbooks fail in health & fitness
18:10
Creatives in health & fitness: emotion vs transformation
23:30
When ads convert but retention breaks
27:40
Overselling in creatives & monetization damage
31:50
Web-to-app: what it looked like in the early days
36:10
When web-to-app works — and when it creates false confidence
40:45
AI in creative strategy: what actually helps today
46:00
Where AI fails in health & fitness marketing
49:30
Avoiding chaos: how to use AI in creative testing
53:40
Sustainable growth & what will matter in 2026
58:10
What's getting structurally harder for health & fitness apps
1:02:20
Designing growth early to avoid future problems
1:05:30
Personal reflections & what still excites Vasyl
1:07:40
Final thoughts & Blitz

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