After installing the MT5 app on your Android device, follow these steps to log in to your account:
Open the mobile app and tap the menu button (the three horizontal lines in the top-left corner).
Select Manage Accounts.
Press the ‘+’ icon.
Enter ‘Tag Markets‘ into the search box and choose Tag Markets from the list.
Input your trading account number (Login) and password, then select the appropriate server for your account type:
TagMarkets-Live for live accounts
TagMarkets-Demo for demo accounts
Press the Login button.