Hello, 
  
maybe you could give https://www.pushsafer.com a try! 
Pushsafer makes it easy and safe to send & receive push-notifications in real time on your iOS (iPhone, iPad) device, Android or Windows Phone and Desktop! 
You are able to send push-notifications to your devices by EMAIL, through a simple URL / LINK or with our simple API. 
This software converts your request (send by eMail, URL, API call) and forwards it as a Push-Notification to your device. 
You can set up your push notification by changing title, message, icon, sound, vibration, time to live, url, url title, upload 3 images, the first one is displayed in the notification itself! 
  
If you have questions to our service or API, please feel free to ask. 
  
Regards 
Kevin