-	Messages can be stored online (via Google Firebase) and offline.
-	Sending images and location other than the messages
-	Chat rooms with customized colour

-	Start by installing expo-cli. After that, from the root directory, run `npm install` from the command line. To put the server running, use the command `expo start`.
-	Once Expo is installed, navigate to the root directory and run `npm install` command from CLI.
-	Next, you can start the app by running expo start. This will launch DevTools on port 19XXX (some number).
-	You can either scan the barcode using a mobile device (expo app required: Android or iOS) or use a simulator or emulator. To test with the simulators you will need to install XCode and Android Studio, so it will eat a lot of space from your machine.

1.	Head to Firebase click on Sign in in the upper-right corner.
2.	Use your Google credentials to sign in and create a new Firebase account, unless you already have one.
3.	Next, click on the Go to console link, which is also in the top-right corner of the window, and choose **Add project**.
4.	Give your project a name, With the default settings selected, agree to the terms and click **Create Project**.
5.	Create a database by clicking on **Develop** from the menu and, from the additional menu that appears, select database.
6.	Next, choose **Create database** in the Cloud Firestore section.
7.	It is essential that you make sure you are **creating a Firestore Database** and not a Realtime Database.
8.	Before you can start adding data into it, you first need to set up some security rules for your database.