What caused the sudden 30% decrease in new user signups on Wattpad's mobile app last week?

Introduction

The sudden 30% decrease in new user signups on Wattpad's mobile app last week is a critical issue that demands immediate attention. As we analyze this product challenge, I'll employ a systematic framework to identify, validate, and address the root cause while considering both short-term fixes and long-term strategic implications.

To tackle this problem, I'll start by asking clarifying questions to gather essential context. Then, I'll rule out basic external factors before diving deep into the product understanding and user journey. We'll break down the metric, gather and prioritize data, form hypotheses, conduct root cause analysis, and finally propose validation methods and next steps.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be related to a recent app update. Has there been any significant app release or update in the past week or two?

Why it matters: Recent changes often correlate with sudden metric shifts. Expected answer: Yes, there was an update. Impact on approach: If yes, we'll focus on changes in that update; if no, we'll look at other factors.

• Considering user segments, I'm curious if this decrease is uniform across all user groups. Are we seeing any differences in signup rates between iOS and Android users, or between different geographical regions?

Why it matters: Helps identify if the issue is platform-specific or localized. Expected answer: The decrease is more pronounced on iOS devices. Impact on approach: If platform-specific, we'll investigate that platform's unique factors.

• Given the magnitude of the change, I'm wondering about any recent marketing campaign changes. Have there been any significant alterations in our user acquisition strategies or ad spend in the past week?

Why it matters: Marketing changes can directly impact new user signups. Expected answer: No major changes in marketing efforts. Impact on approach: If no changes, we'll focus more on product and technical issues.

• Considering potential data anomalies, has there been any change in how we track or define new user signups recently?

Why it matters: Ensures we're not dealing with a measurement issue rather than an actual decrease. Expected answer: No changes in tracking methods. Impact on approach: If there were changes, we'd need to validate our data first before proceeding.