I have an appointment reminder platform that I built that's Tattoo Artists and Parlors are using in LA. It's called Notif.ly. Free to use. It reminders your clients of their appointments by automatically sending them a text that they can reply to in order to confirm or cancel the appointment. Check it out. No Credit Card Required! nomorenoshows.com
If you ahve any suggestions please let me know this is my pet project and I just want it to add value.