Yes, we have an iOS companion app. Search the App Store for "Session - Booking" from your phone.
Please keep in mind that the iOS mobile App is not meant to replace our main in-browser App. The mobile App's primary purpose is to give you quick access to session details, bookings and to receive booking notifications on the go! To manage, edit sessions, create new contracts, questionnaires, coupons, configure account settings, etc., you'll still need to access usesession.com from your phone's browser or your computer.