所以这取决于你的要求.因此，如果您只想发送普通通知，那么我真的可以推荐 PushBots.

So it depends on your requirements. So if you want to just send normal notifications, then I can really recommend the PushBots.

但如果你想创建额外的功能，比如不可见的数据负载，你可能必须使用 FCM.

But if you want to create extra features like invisible data payload, you probaly have to use FCM.