Chat applications like WhatsApp, Hike and FaceBook Messenger have completely transformed the way people choose to interact with one another. Investing in creating an excellent chatting app is widely considered to be a great idea since they have great business value. However, it is important to find the finest technological tools to create the chat application to make it user friendly and feature rich.

By using the modern SDKs it has become really simpler for app developers to create state of the art chatting applications. It is important to use the existing mechanism for plugging into the system. There are currently numerous great programs that can be used for creating high quality chat applications that can be used for various purposes.

There are a number of things that you need to keep in mind when you are looking to create chat applications. These are the main aspects of a chatting application program.

• Client facing app  
• A messaging channel  
• A server setup/infra for handling messaging transactions at scale

These are the various technologies that will be involved with the making of the chat apps.

Client facing app

• App that involves all UI as well as basic UX and he Android/iOS/Windows libraries
• A database for saving data in the device/work offline, i.e. SQLite/Realm
• Managing the states for device such as network change and calls as well as responding for the messaging based events, i.e. API dependent and are available with the target OS
• Maintaining connection with server through Sockets, MQTT and XMPP
• Push Notifications like Firebase Cloud Messaging, One Signal, Urban Airship
• An optional media and location feature such as Android Media Framework API, Google Maps SDK

Messaging Channel

• Choose from XMPP, Socket or MQTT, alternately a combination of them can also be used
• Ensuring the use case
• MQTT is meant for mobile devices and IOT is widely preferred
• Preferably using a socket for a desktop app
• XMPP technology which can work for both according to the scale

Server

• Setting up an infra which can take care of the saving messages just as they come and go
• Effective load balancing on server for managing the scale when total numbers of connections multiply or reduceDatabase management
• Id management for understanding which connections can be used between the two ID while maintaining messaging logic
• Setup topics for managing delivering messages and push notes

Many app development companies in India use these technological tools stated above can really work well for you when you are looking to create a simple chat application.