Who am I?

🐦 Twitter: x.com/nickgdwn

💼 LinkedIn: linkedin.com/in/nickgodwin/

🏃‍♂️ Side project: appstorereject.com

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Why experimentation is the key to sustainable growth

"The companies that grow the fastest are the ones that learn the fastest.” - Sean Ellis, Hacking Growth

  1. Optimize for rapid testing & remove constraints: Speed in running experiments determines success.
  2. Data-driven insights: Fast learning comes from analyzing clean user data.
  3. Adaptability: Quick adjustments beat rigid, slow long-term plans.

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Optimizing for testing speed = removing constraints

The Theory of Constraints

The Core Idea – Every system has a limiting factor or constraint. Focusing improvement efforts to better utilize this constraint is normally the fastest and most effective way to improve profitability. Source: https://www.tocinstitute.org/theory-of-constraints.html

In your experimentation system, constraints might be design team availability, engineering availability, data access, etc.

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Experiment Layering

Once users are your only primary constraint, layer your experiments to accelerate growth testing.

Reference: https://superwall.com/blog/how-stardust-increased-ios-app-revenue-by-4x-in-six-weeks

Reference: https://superwall.com/blog/how-stardust-increased-ios-app-revenue-by-4x-in-six-weeks

How the best subscription apps approach paywalls in 2026

How I evaluate paywalls → ask 3 questions

  1. How many decisions does the user have to make?
  2. Does this paywall make the user read?
  3. Does this paywall make the user do math?

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