[Edit: I just realized the Pricing page says that only on the Enterprise version is HIPAA compliance guaranteed. How can you get away with that? When you deal w

[Edit: I just realized the Pricing page says that only on the Enterprise version is HIPAA compliance guaranteed. How can you get away with that? When you deal with personally-identifiable health information (using a person's cell phone number is personally identifiable), HIPAA compliance is not a suggestion, it's a regulation enforced by the Office for Civil Rights. How are the non-Enterprise level subscriptions even legal? ] I actually built an application like this (but it was as a sub-contractor, so I feel no obligation to promote it here). The application I built allowed users to set their appointment reminder settings to text and/or call their phone with an automated reminder message. I also made it so that if you hit 3 on the message (there were a few options, but 3 was my favorite), it would give you voice directions to your appointment. Also, is your appointment reminder application HIPAA compliant? It definitely should be (http://www.hhs.gov/ocr/privacy/ http://www.hhs.gov/ocr/privacy/) since it deals with potentially sensitive health information.