What's causing the sudden 30% decrease in Booking.com mobile app installations among Android users in Brazil?

Introduction

The sudden 30% decrease in Booking.com mobile app installations among Android users in Brazil is a critical issue that demands immediate attention. This analysis will systematically identify, validate, and address the root cause while considering both short-term and long-term implications for our product strategy.

I'll approach this problem by first clarifying key details, ruling out external factors, and then diving deep into our product, user journey, and metrics. From there, I'll form data-driven hypotheses, conduct root cause analysis, and propose validation methods and solutions.

Step 1

Clarifying Questions (3 minutes)

• Looking at the specificity of the issue, I'm wondering about the timeframe. Has this 30% decrease occurred over the past week, month, or quarter?

Why it matters: The timeframe helps determine if this is a sudden drop or a gradual decline, influencing our approach to diagnosis and solution. Expected answer: The decrease occurred over the last month. Impact on approach: A sudden month-long drop might indicate a specific event or change, while a gradual decline could suggest a broader trend or competitive issue.

• Considering the localized nature, I'm curious about any recent changes in the Brazilian market. Have there been any significant updates to Android OS or Google Play Store policies in Brazil recently?

Why it matters: Platform changes can significantly impact app installations and visibility. Expected answer: No major Android or Play Store changes specific to Brazil. Impact on approach: If there were changes, we'd focus on adaptation; if not, we'd look more closely at our app's performance and marketing in Brazil.

• Given the specific mention of Android, I'm wondering about our iOS performance in Brazil. Has there been any change in iOS app installations during the same period?

Why it matters: This helps determine if the issue is Android-specific or a broader trend affecting our app across platforms. Expected answer: iOS installations have remained stable. Impact on approach: If iOS is stable, we'd focus on Android-specific issues; if both are declining, we'd consider broader market or product factors.

• Thinking about our user acquisition funnel, I'm curious about our marketing efforts. Have there been any significant changes in our marketing spend or strategy for Android users in Brazil recently?

Why it matters: Changes in marketing can directly impact app installations. Expected answer: No major changes in marketing spend or strategy. Impact on approach: If marketing hasn't changed, we'd look more closely at app performance, user experience, or competitive factors.