The Clearlight Sanctuary Saunas are IoS and Android App compatible, while the Clearlight Premier Saunas are not. This can be a nice feature, but importantly – both the Clearlight Sanctuary and Clearlight Premier saunas both have a pre-schedule feature that permits you to turn them on up to 36 hours in advance. The only difference with the Clearlight Sanctuary is that it permits you to do so from the comfort of your own bed rather than going into the infrared sauna to set it!