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Acquisition vs Retention Growth Decision

Medium
StrategyEstimationTrade-offsGrowth StrategyAsked 1 times

Problem

Company Context

FitBite is a mobile subscription app in the digital nutrition and habit-coaching market. The company has 3.2 million registered users, 420,000 monthly active users, and 96,000 paying subscribers on a $14/month standard plan. FitBite has grown quickly through paid social and influencer marketing, but growth has slowed over the last two quarters. Management is debating whether the next two quarters of investment should prioritize acquisition (more top-of-funnel spend, referral incentives, channel expansion) or retention (onboarding improvements, habit streaks, personalized coaching prompts, win-back programs). You are the strategy lead asked to recommend where the company should focus first.

Strategic Situation

The decision matters now because FitBite has a fixed growth budget, rising acquisition costs, and a board target to reach $24 million ARR within 12 months. The CEO believes the brand still has room to scale through paid acquisition, while the Head of Product argues that weak early retention is suppressing lifetime value and making acquisition inefficient. The company cannot fully fund both motions at once: engineering capacity can support only one major growth initiative in the next six months, and marketing has budget for either a meaningful acquisition push or a retention program, but not both.

Data Points

MetricCurrent ValueNotes
Monthly new free sign-ups180,000Down from 210,000 six months ago
Free-to-paid conversion within 30 days4.8%Best channel: organic search at 6.2%; worst: paid social at 3.9%
3-month paid subscriber retention58%Best cohort: users completing onboarding at 71%
Monthly paid subscriber churn7.5%Industry benchmark for similar apps: 5-6%
Blended CAC for paid subscribers$118Up 31% year-over-year

Additional facts:

  • Average gross margin on subscription revenue: 78%
  • Monthly marketing budget available for growth initiatives: $1.8M
  • Product/engineering capacity: 10 engineers, enough for one major initiative over 2 quarters
  • Estimated impact if acquisition is prioritized: +35% new sign-ups in 6 months, with conversion rate unchanged
  • Estimated impact if retention is prioritized: monthly churn improves from 7.5% to 5.8% and 30-day conversion improves from 4.8% to 5.4% due to better onboarding

Deliverables

  1. Determine whether FitBite should prioritize acquisition or retention first over the next 6 months.
  2. Use the data provided to estimate the revenue and subscriber impact of each option over 12 months.
  3. Assess whether unit economics support scaling acquisition now or whether retention must improve first.
  4. Identify what additional data you would want before making a final recommendation.
  5. Propose a sequenced growth strategy for the next 12 months, including key milestones.

Constraints

  • One primary growth bet for the next 6 months; no parallel full-scale acquisition and retention programs
  • Must show credible path to $24M ARR within 12 months
  • Budget increase is unlikely before the next board meeting in 4 months
  • Recommendation must be implementable without changing pricing in the near term
Practicing as: Product Growth Analyst interview at Andreessen Horowitz

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