Do you have a mobile app?
We don't currently have one, however, our software is fully mobile responsive software so your schedule will adjust to work correctly on a phone or tablet. Clients would just need to go to the web address of your schedule to make a booking.
Some of our users then add the address to their home screen so they get a app-like button that they can simply click on to get to your schedule whenever they need it.
Please refer to your mobile device's help for how to add a button to your home screen.