Please follow the steps outlined below to setup TruGrid SecureRDP for iOS End User
Download and install TruGrid iOS Connector on your iOS device
1. Open the TruGrid iOS Connector and enter your login email address.
2. Click CONTINUE
3. Enter your password
4. Enter your Authenticator Code ------ *Skip this part if you don't have Multi-Factor Authentication enabled.
5. Click SIGN IN
6. At the TruGrid Workspace, you may now connect to your assigned desktop
Source:
https://help.trugrid.com/en/article/trugrid-secure-rdp-setup-guide-for-ios-end-users-b8unkw/