Estimate daily active usage of Ad-supported Plan in a priority market

Problem Statement Description

Product context: Netflix is a streaming entertainment company; its products include subscription video, original films and series, recommendations, profiles, games, and ad-supported plans.

Netflix has introduced an Ad-supported Plan to expand access in price-sensitive and competitive streaming markets while creating a new advertising revenue stream. In this interview, you are asked to estimate the daily active usage of the Ad-supported Plan in one priority market, focusing on how many users are actively watching Netflix on this plan on an average day.

Assume the market is strategically important for Netflix because it has a large entertainment audience, strong competition from streaming services, social video platforms, and local broadcasters, and meaningful demand from genre fans such as viewers of drama, anime, reality, sports-adjacent content, or local-language hits. Your estimate should reflect the realities of subscription adoption, household sharing, viewing frequency, ad-tier eligibility, and engagement behavior.

This is a guesstimate exercise, so the emphasis is on building a clear, logical sizing model rather than knowing exact internal numbers. You should define the unit you are estimating, state assumptions clearly, and show how changes in key assumptions would affect the final estimate.

The experience should consider:

- The specific scope of “daily active usage,” such as active viewers, active accounts, or viewing profiles on the Ad-supported Plan.

- The priority market population, internet-connected households, streaming-eligible users, and Netflix’s reachable audience.

- Adoption of Netflix overall and the share of subscribers likely to choose the Ad-supported Plan.

- Differences between paid accounts, household members, and individual viewers who may use the same subscription.

- Viewing frequency, including how many ad-plan users watch on a typical day versus weekly or monthly.

- Segment behavior for genre fans, including binge cycles, new releases, local content, and repeat engagement.

- Competitive pressure from platforms such as YouTube, TikTok, Disney+, Prime Video, local broadcasters, and other entertainment options.

- Sensitivity checks around penetration, ad-tier mix, account sharing, churn, and seasonality.

The goal is to produce a defensible estimate of average daily active usage for Netflix’s Ad-supported Plan in the chosen priority market, supported by transparent assumptions, simple math, and sanity checks that would make the estimate useful for product, advertising, content, and market planning discussions.