Locontrol
This iOS App is simply beautiful, but you would expect this from a team of talented people consisting of an artist/graphic designer, an iOS Developer, and a User Interface (UI) Designer.
Today, you can use Locontrol on an iOS device connected to JMRI through its Web Interface. JMRI then connects to EX‑CommandStation with a USB cable or wireless USB bridge.
We are currently working with the Locontrol folks to work directly with EX‑CommandStation without the need for external software. Come back soon for more information. In the meantime, please visit their website https://www.locontrol.com 
Features
Connect to JMRI with the WiFi Web Server in DecoderPro
Locomotive Roster list with Photos
Uses the phone camera
Make videos and take pictures of your trains while operating