We provide lightning-fast, highly-reliable push notification delivery to mobile devices, worldwide (including China) and using a proprietary, fine-tuned MQTT connection. Pushy is a highly-reliable push notification gateway for Android, iOS, and Web apps that works independently from FCM, using its own background MQTT connection. Our solution is the only push notification solution that can deliver notifications worldwide, including in mainland China, and works on Android devices without Google Play Services. Furthermore, our solution can be hosted on-premises to deliver notifications 100% offline.