如何使用IRate Sdk每30天显示一次费率提醒

Question

我在前6次尝试中显示了费率提醒视图，之后我需要使用Irate SDK每30天显示一次。我怎么能表明请帮助我。

  **First 6 attempts :**
[iRate sharedInstance].applicationBundleID = @"Bundle id";
        [iRate sharedInstance].onlyPromptIfLatestVersion = NO;
        [iRate sharedInstance].eventsUntilPrompt = 6;
        [iRate sharedInstance].daysUntilPrompt = 0;

  **to call for 30 days :**
[iRate sharedInstance].applicationBundleID = @"Bundle id";
    [iRate sharedInstance].onlyPromptIfLatestVersion = NO;
    [iRate sharedInstance].eventsUntilPrompt = 0;
    [iRate sharedInstance].daysUntilPrompt = 30;