If you are NOT using the MSR, there are many paid and free RDP clients, with as just many performance variations. You should carefully evaluate any clients and observe responsiveness and configurability.
In general, if a client is well rated in an app store it should work, but it may be well worth the investment to purchase an RDP client if one of the lite versions does not perform adequately.
Consideration should be given the so that the RDP client allows configuring the following:
Username & Stored Password;
Screen Resolution/Size: 1024x768
Color Depth: 15bit or 16bit
Allows for changing the default remote connection port
Two apps that have been tested are 2X Client and Microsoft’s RD Client. However, given the number of RDP apps on the market, ASI cannot assume tech support knowledge for all.
Available on most Apple products, Guided Access is a feature available in iOS 6 and greater. Guided Access temporarily restricts your iOS device to a particular app and by password protecting the "Home" button.
Enable Guided Access
Tap Settings > General > Accessibility > Guided Access to set up Guided Access. From there you can:
Turn Guided Access on or off
Set a passcode that controls the use of Guided Access and prevents someone from leaving an active session
Start Guided Access Session on iPad
Open the RDP app.
Triple-click the Home button.
Click Start.
End a Guided Access session
Triple-click the Home button.
Enter the Guided Access passcode