In-App Purchase Keywords
In-App Purchase (IAP) names and descriptions are indexed by Apple for search — giving apps an additional, often overlooked, source of keyword coverage beyond the main metadata fields.
Apple indexes the names and descriptions of an app's in-app purchases and subscriptions for App Store search. A subscription named 'Premium: Habit Tracker Pro Features' contributes the terms 'premium', 'habit', 'tracker', 'pro', and 'features' to the app's search footprint — without using any keyword field characters.
This means naming IAPs thoughtfully for both conversion (what does the user get?) and keyword coverage (what terms do I want to rank for that I haven't fit into the name, subtitle, or keyword field?) is a legitimate optimization layer.
IAP keyword coverage is less powerful than name or subtitle placement, but it is effectively free character space that most apps underutilize.
Frequently asked questions
- How many IAP names can I use for keyword coverage?
- Apple allows up to 10 in-app purchases per app. Each IAP name is indexed. The practical limit is how many IAPs your app genuinely offers — creating fake IAPs purely for keyword coverage violates Apple's guidelines.
Related terms
- App Store Search Ranking FactorsApp Store search ranking factors are the signals Apple's algorithm uses to determine which apps appear at the top of results for a given keyword — primarily metadata relevance, user engagement, and app quality indicators.
- Keyword CannibalizationKeyword cannibalization in ASO occurs when an app's multiple metadata fields target the same keyword, wasting limited character space rather than covering additional search terms.
- App Store Metadata FieldsApp Store metadata fields are the text inputs that affect how an app is discovered and presented in the App Store — primarily the name, subtitle, keyword field, and developer name, each with different character limits and ranking weight.
Browse the glossary
Put this into practice
Score App Store keywords by popularity and difficulty across 109 storefronts — the numbers behind in-app purchase keywords.
Start keyword research