✦ Pricing
Movement index
App Store Volatility Index
Interpret the observed 0-100 chart movement index, component scores, labels, coverage and stable or volatile chart groups.
- Best for
- ASO, growth and market-monitoring teams
- Access
- Public
What the score measures
The index summarizes observed change between compatible stored chart snapshots. It measures chart movement, not market value or future performance.
- Moved-app share.
- Average absolute rank movement.
- Top-10 churn.
- New entrants and exits.
- Share of large moves.
Score labels
Labels provide a consistent interpretation across chart groups.
- 0-24: Stable.
- 25-49: Active.
- 50-74: Volatile.
- 75-100: Highly volatile.
- Insufficient history: no compatible previous snapshot.
How to use it
Use volatility to identify markets worth investigating, then open the linked chart to inspect actual movers.
- Compare countries using the same observation window.
- Review component scores instead of relying only on the global number.
- Treat unusually high movement as a research prompt, not proof of demand.