How can I install Magento mobile app Extension for magento 2?

Extension can be installed by any one of the below methods
 
1. Using Composer:
 
Run the following command from your terminal:
Step 1: Open terminal in your system.

Step 2: Connect to your website source folder with FTP/SFTP/SSH.

Step 3: sudo composer require mmsbuilder/connector

Step 4: php bin/magento setup:di:compile

Step 5: php bin/magento setup:upgrade

Step 6: php bin/magento setup:static-content:deploy -f

Step 7: sudo chmod 0777 -R var/* generated/* pub/static/*

 
2. Manual Installation through zip file:
 
Installation Steps:
Unpack the extension ZIP file on your computer.
Connect to your website source folder with FTP/SFTP/SSH client and upload all the files and folders from the extension package to the corresponding root folder of your Magento installation:
 

 
Please use the “Merge” upload mode. Do not replace the whole folders, but merge them. This way your FTP/SFTP client will only add new files. This mode is used by default by most of FTP/SFTP clients software. For MacOS it’s recommended to use Transmit. If you install several extensions from Amasty, they will contain same files from the Base package — feel free to overwrite them, these are system files used by all our extensions.

Connect to your Magento directory with SSH.
Run 3 following commands:

> php bin/magento setup:upgrade
> php bin/magento setup:di:compile
> php bin/magento setup:static-content:deploy

After complete installation steps. Login in magento admin section and press
“Click here ” text.

3. From Marketplace:
 
Step1: Download the zip from marketplace
Step2: Unpack the extension ZIP file on your computer.
Step3: Run the following commands:
php bin/magento setup:di:compile
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f
sudo chmod 0777 -R var/* generated/* pub/static/*