Back to cases
GoogleProduct SenseMedium~25 min

Gmail User Base Growth

Gmail has 1.8 billion accounts but active user growth has plateaued at 2% annually. The VP of Gmail wants to increase the active user base by 15% in 18 months. You need to define the right metrics, identify where the activation funnel breaks, and design a referral experiment to drive growth beyond organic sign-ups.

Duration
~25 minutes
Difficulty
Medium
Free
Your first session · then $3 per session
  • ~25 minute AI-powered mock interview
  • Realistic interviewer pushback
  • Stage-by-stage debrief with ratings
  • Signal coverage map
  • Reference response for comparison

Sign up free with Google · No card required

Skills tested
Growth metric design beyond vanity metricsActivation funnel analysisReferral experiment designMarket segmentation for growth strategy
Interview stages
1
Define metrics beyond sign-ups
2
Diagnose the activation funnel
3
Design a referral experiment
What you'll get back

After the session, you'll get a detailed debrief: stage-by-stage ratings (Strong / Developing / Weak), a signal coverage map showing which key points you hit, specific feedback on your reasoning and communication, and a reference response to compare against.