Metrics question

Shopify addressed user needs by opening its platform to 3rd party developers for app creation. Your team is developing the Shopify App Store, facilitating app discovery/installation for merchants to boost business growth. What are the goals and success metrics of this marketplace?

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What this question tests

Marketplace metric design that balances both sides: merchants and developers.

State the goal: help merchants find apps that grow their business, and help developers reach merchants profitably.
Define merchant-side metrics: app install rate, 30-day app retention, and merchant GMV lift after installing.
Define developer-side metrics: number of active listed apps, developer revenue via the store.
Pick a north star that ties both sides, e.g. merchant GMV influenced by App Store installs.
Add a quality guardrail, e.g. uninstall rate, to catch low-value apps gaming installs.
Note how you'd weight the two sides if they trended in opposite directions.

Explicitly covers both sides of the marketplace rather than only one.
Proposes a north star tying supply and demand together, e.g. GMV influenced by installs.
Names a quality guardrail like 30-day uninstall rate to catch low-value apps gaming installs.
Gives an illustrative number, e.g. assumes 15% of merchants install at least one app in year one.

Only measuring installs, a vanity metric, without a retention or value guardrail.
Ignoring the developer side of the marketplace entirely.

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