Keyword metrics are numerical properties that AppTweak has been able to gather or estimate about keywords. Metrics are exposed through two endpoints:

Keyword Metrics - Current returns the latest - most recent - data available

This endpoint returns the data for today. If AppTweak hasn't stored the data, the data will be fetched live on the store.

Keyword Metrics - History returns the historical daily values over a given period of time.

This endpoint returns the data from AppTweak's databases. If the data is not available, you'll get a "null" response and you won't get charged credits for the datapoints.

See below for a list of available metrics.

Metric name	Description	Origin	Historical Data Available?
volume	A score between 5 and 100 that shows how popular a keyword is in terms of searches. The higher the number, the more popular the keyword is. Only available in countries where Apple Ads is available.	Apple Search Popularity Score	✅
max_volume	Highest Search Popularity score recorded for this keyword since January 1st, 2025.	Apple Search Popularity Score	➖
difficulty	A score between 1 and 100 that shows the level of competition of a keyword. The higher the number, the higher the competition. A high Difficulty score indicates that powerful apps rank in the top 10 search results, making it more difficult to rank high for the keyword.	AppTweak-defined KPI	➖
brand	An object containing an app id, app title, and app icon if a keyword is branded. An empty object means that the keyword is considered generic.	AppTweak estimation	➖
results	On iOS, this represents the total number of apps considered by Apple before applying their sorting algorithm. A bigger number means that more apps "match" the keyword. On Android, this is the total number of apps that AppTweak was able to fetch when making the search for a keyword.	Gathered directly from the app store pages	✅
max_reach	An object containing monthly impressions estimation for a keyword and the data of the data. Not available for ipad.	AppTweak estimation	➖
all_installs[DEPRECATED]	An estimation of downloads generated by searches for that keyword every month, if available for the country requested.	AppTweak estimation	➖