MetaMask and Additional account creation
MetaMask is a free crypto wallet available both as a web extension and as a mobile app version
that is used for storing and swapping cryptocurrency and also to interact with Ethereum (and
host dApps).
With a simple and understandable interface, MetaMask has ultimately become the most
preferred tool in the field of the Ethereum ecosystem.
Benefits of MetaMask
 MetaMask provides you with everything that is needed for the management of your
digital assets like a key vault, secure MetaMask sign in , token wallet, and token
exchange.
 It is available for both mobile and web in different versions.
 The passwords and keys of yours that are generated are done on your device and not on
any other database. So they are not accessible by anybody other than you.

Creation of an additional account in the wallet
 
 When a MetaMask wallet is created, a Secret Recovery Phrase is given to the user and
automatic generation of an account takes place. That will be the default account named
Account 1.
 The creation and management of more than one account can be done very simply by
creating more accounts after MetaMask sign in is done. All of them are associated with
the same Secret Recovery Phrase which was given in the initial stage.
For extension: 
1. Do the MetaMask Sign in and tap the favicon, which is a circular account image, placed at
the top right corner of the wallet screen 
2. Tap on Create Account.
3. Enter the name that you want to give to your account and click Create for confirmation.
For mobile:

1. Initially you will have to do the MetaMask sign in to tap the account icon. This can be
tapped either in the home screen of the wallet or by clicking the hamburger icon at the top
right corner and then clicking the account icon. 
2. Tap Create New Account in the section where the account is supposed to be selected.
3. Long press the account name to change it when you are back on the home screen.
Conclusion-
We have tried our best to give an insightful introduction to MetaMask and to explain additional
account creation in the MetaMask wallet. MetaMask is the best option when it comes to the
combination of simplicity and security for connecting to applications related to blockchain.
We hope our effort was helpful to you.