app-review-limit-by-usage

AppReview.swift

class AppReview : NSObject {
    
    static let minimumAppLaunchCountForAppReview = 1
    
    @objc static func requestReview() {
        if (getAppLaunchCount() > minimumAppLaunchCountForAppReview) {
            if #available(iOS 10.3, *) {
                SKStoreReviewController.requestReview()
            }
        }
    }
    
    static func getAppLaunchCount() -> Int {
        return UserDefaults.standard.integer(forKey: UserDefaults.Keys.appLaunchCount.rawValue)
    }
    
    // Set in application(_:didFinishLaunchingWithOptions:)
    static func incrementAppLaunchCount() {
        let incrementedAppLaunchCount = AppReview.getAppLaunchCount() + 1
        UserDefaults.standard.set(incrementedAppLaunchCount, forKey: UserDefaults.Keys.appLaunchCount.rawValue)
        UserDefaults.standard.synchronize()
    }
    
}