You can create a simple home screen icon to allow fast and easy access to your TM3 Web Portal just like it was an app.
You will need to open Safari on your Apple device.
Once you have safari open go to your TM3 Web Portal login page as shown below.
Tap the Share Icon
Slide the bottom row of options to the left
Tap the Add to Home Screen icon
You can rename the icon here. Once you are happy with the name Tap Add
You should now have a TM3 icon like below. This can be put in a folder.