Catapush is described as 'guaranteed and faster push notification delivery Thanks to a standalone push notification gateway, independent of Android GCM and Apple APN services, Catapush maintains own real time background connection with devices using XMPP protocol (as Whatsapp does) thus' and is an app in the Development category. There are more than 25 alternatives to Catapush for a variety of platforms, including Online / Web-based, Android, iPhone, Windows and Linux. The best alternative is Nakama, which is both free and Open Source. Other great apps like Catapush are Pubnub (Freemium), QuickBlox (Freemium), RapidAPI (Free) and PlayFab (Freemium).
Nakama is an open-source distributed social and realtime server for games and apps. It has a large set of services for users, storage, and realtime communication; as well as specialized APIs like realtime multiplayer, groups/guilds, and chat.
PlayFab offers a complete backend service to build, launch, and grow live games The backend services your game needs, exposed via our ever-expanding API of more than 200 functions. Use them by themselves, or mix-and-match with your own custom backend services.
Universal Push Notification Platform Scalable Our platform is able to support the largest load you can possibly imagine. We have designed our solution to support tens of millions of devices... from day one. Never be afraid to grow too big.