OSAS2.0 is a rewrite of the OSAS Sleep Apnea Screener. The Obstructive Sleep Apnea Screener (OSAS) has been remade for better look and feel, and to provide data transmission to you. It has also been made free (and free of ads). Should you like it and/or find it useful please contribute. May OSAS serve you well. OSAS) provides four OSA screening tools including: The American Society of Anesthesiologists' Checklist The Berlin Questionnaire The STOP Questionnaire: Snoring, Tired,