Understand the term.
Make a better decision.
Plain-English definitions for App Store growth. Every term links to a practical guide, with the important limitations left in.
- Activation
- A product-defined action showing that a new user reached a meaningful first value, such as creating and completing a list. Its definition should reflect the app’s actual job, not just opening it.
Understand it in practice → - App Store optimization (ASO)
- Improving an app’s discovery and the clarity of its store listing so relevant people can find and evaluate it. ASO is not a guarantee of rankings, downloads, or retention.
Understand it in practice → - App subtitle
- The up-to-30-character phrase below an app’s name that explains a benefit or use case. It should complement the name rather than repeat the same words.
Understand it in practice → - Competitor keyword gap
- A candidate search where public result comparisons suggest a competing app is visible and your app is less visible or absent. The gap matters only if the intent fits your product.
Understand it in practice → - Conversion rate
- A ratio of a defined outcome to a defined set of eligible observations. Always state the metric definition and filters; page views and unique impressions are not interchangeable denominators.
Understand it in practice → - Keyword difficulty
- A tool-specific estimate of competitive conditions. Its meaning depends on the inputs and methodology; it is not Apple’s internal ranking formula or a promise of a particular position.
Understand it in practice → - Keyword field
- The private App Store Connect metadata field containing up to 100 characters of relevant comma-separated keywords. It cannot be read from a competitor’s public listing.
Understand it in practice → - Localization
- Adapting language, examples, visuals, and product expectations to an intended audience. Translating metadata without supporting the promised experience in the app is incomplete localization.
Understand it in practice → - Long-tail keyword
- A narrower, more specific search phrase than a broad category query. Greater specificity can improve intent fit, but does not by itself establish low competition or enough demand.
Understand it in practice → - Not found in sample
- The app did not appear in the returned search results. This does not establish an exact lower rank, a zero position, or a universally missing app.
Understand it in practice → - Product page optimization (PPO)
- Apple’s testing feature for alternate icons, screenshots, and app previews shown to randomly allocated eligible traffic. It is not a native experiment for titles or keyword fields.
Understand it in practice → - Promotional text
- An App Store listing field of up to 170 characters for timely information. Apple says it does not affect search ranking, so it should not be used as an extra keyword field.
Understand it in practice → - Rank snapshot
- A recorded observation for a particular app, exact keyword, storefront, and time. History consists of collected snapshots; failed or uncollected observations must not be invented.
Understand it in practice → - Retention
- Whether a consistently defined group of users returns or continues a useful behavior over time. Downloads and better public keyword positions do not establish retention.
Understand it in practice → - Sampled search position
- An app’s position within one public search response at an observation time. Back My Side samples up to 200 results; the position can differ from personalized on-device results.
Understand it in practice → - Search intent
- The job someone wants to accomplish when entering a query. A keyword is useful only when the app can fulfill the expectation behind that query.
Understand it in practice → - Search volume
- The number of searches for a term during a defined period and scope. Public result counts and Back My Side’s relative heuristics do not reveal Apple’s exact search volume.
Understand it in practice → - Seed keyword
- An initial term based on an app’s core task or audience, used to discover and organize more specific candidate searches. It is a research starting point, not validated demand.
Understand it in practice → - Storefront
- A country or territory’s App Store context. A sampled position belongs to a specific storefront; it is not a worldwide ranking and is not interchangeable with a language localization.
Understand it in practice → - Tracking cohort
- A stable group of app-keyword-storefront combinations reviewed over time. Changing its membership can change an aggregate even when individual query performance has not changed.
Understand it in practice →
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