Will the application be displayed only to users with a certain age?
Not age. The Playstore application has filters; and based on these filters, applications will be visible to users. Therefore, if your application has a rating of Medium maturity , and I set the filter settings of the PlayStore application to Low maturity , your application will not be visible to me.
Source: https://support.google.com/googleplay/answer/1075738?hl=en-IN
All Applications in this category should not collect user location data or contain objectionable material. Applications should not share user content or include social features.
Low maturity Applications in this category may include cases of soft cartoon or fantasy violence or other potentially offensive content. Applications can collect user location data in order to provide location information or otherwise improve user experience, but should not share data with other users. Applications may include some social features, but should not focus on allowing users to find and communicate with each other.
Medium maturity Applications in this category may include sexual links; intense fantasy or realistic violence; Foul language or rude humor; links to drug, alcohol and tobacco use; social features and simulated gambling. Applications may collect user location data for sharing or publication with the consent of the user.
High maturity Applications in this category may focus on frequent cases of sexual and thought-provoking content; scenes of violence; social features; gambling simulation; and links to alcohol, tobacco and drugs. Applications may collect user location data for sharing or publication with the consent of the user.
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