Force Update iOS App while API has major update

ForceToUpdateApp.swift

final class ForceToUpdateApp {
    static func isForceToUpdateRequired(versionNumber:Int) -> Bool {

        if (UserDefaults.standard.object(forKey: "appVersion") as? String) == nil {
            UserDefaults.standard.set(Bundle.main.releaseVersionNumber, forKey: "appVersion")
        }
        
        if (UserDefaults.standard.object(forKey: "apiVersion") as? Int) == nil {
            UserDefaults.standard.set(versionNumber, forKey: "apiVersion")
        }
        
        guard let installedAppNumber = UserDefaults.standard.object(forKey: "apiVersion") as? Int else {
            return false
        }
        
        if versionNumber > installedAppNumber {
            return checkInstalledAppVersion(versionNumber)
        }else {
            return false
        }
    }
    
    static func checkInstalledAppVersion(_ apiVersionNumber:Int) -> Bool {
        guard let instaledAppVersion = UserDefaults.standard.object(forKey: "appVersion") as? String else {
            return false
        }
        
        if instaledAppVersion == Bundle.main.releaseVersionNumber! {
            return true
        }else {
            UserDefaults.standard.set(Bundle.main.releaseVersionNumber, forKey: "appVersion")
            UserDefaults.standard.set(apiVersionNumber, forKey: "apiVersion")
            return false
        }
    }
}



extension Bundle {
    var releaseVersionNumber: String? {
        return infoDictionary?["CFBundleShortVersionString"] as? String
    }
    var buildVersionNumber: String? {
        return infoDictionary?["CFBundleVersion"] as? String
    }
}