The short answer is that Clear allows members to verify their identity using biometric scanning ahead of airport security, whereas Global Entry expedites re-entry into the U.S. after international travel. Clear allows you to hurry through security lines faster at 50-plus airports around the United States.
Children under 18 don't need a membership and can go through the Clear lane when accompanied by an adult. Once you are a Clear member, you can add up to three family members for $99 each per year.
For some people, however, the eligibility and application process may be just as frustrating as a 2-hour security line. According to a New York Times article, 3 to 5 percent of the 30,000 Global Entry traveler applications submitted each month are rejected. Most common reason?