What's causing the sudden 50% decrease in new user sign-ups through Medium's mobile app?

Introduction

The sudden 50% decrease in new user sign-ups through Medium's mobile app is a critical issue that demands immediate attention. This analysis will systematically identify, validate, and address the root cause while considering both short-term fixes and long-term strategic implications.

I'll approach this problem by first clarifying the context, then ruling out external factors before diving deep into the product ecosystem, user journey, and potential internal causes. We'll generate data-driven hypotheses, conduct root cause analysis, and develop a comprehensive plan for validation and resolution.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be a recent change. When exactly did you first notice this 50% drop?

Why it matters: Pinpointing the timeframe helps narrow down potential causes. Expected answer: Within the last week or two. Impact on approach: A sudden drop suggests a specific trigger rather than gradual decline.

• Considering user segments, I'm wondering if this affects all user types. Is the decrease uniform across different user demographics or content categories?

Why it matters: Identifies whether the issue is global or specific to certain user groups. Expected answer: The drop is more pronounced in younger users and certain content categories. Impact on approach: Would focus on investigating those specific segments and related features.

• Given the mobile focus, I'm curious about platform specifics. Is this decrease consistent across iOS and Android, or more pronounced on one platform?

Why it matters: Helps isolate whether it's a platform-specific issue. Expected answer: The drop is more significant on iOS. Impact on approach: Would prioritize investigating iOS-specific changes or issues.

• Thinking about recent changes, have there been any significant updates to the app or backend systems coinciding with this drop?

Why it matters: Identifies potential internal triggers for the issue. Expected answer: A recent app update was released just before the drop was noticed. Impact on approach: Would focus on changes introduced in that update and their potential impact.