What is the difference between a turnstile and a flap barrier?

Typically consists of horizontal rotating arms or vertical rotating bars. Users push the arms, and after a single rotation, the turnstile allows one person to pass through. Commonly used in areas where a simple and effective means of access control is required. Features a set of retractable flaps or wings that open to allow passage when authorized. Flap barriers often have a more sophisticated appearance, with streamlined and aesthetic designs. Suitable for locations where a higher level of security and a modern look are desired.

Rotating arms or bars act as a physical barrier that restricts passage. Single or multiple arms rotate to permit entry after authentication. Retractable flaps or wings open to allow passage when authorized. Flaps provide a more enclosed and controlled entry compared to the rotating arms of turnstiles. Turnstiles are often considered more basic in terms of security. They are suitable for environments where moderate access control is sufficient. Flap barriers offer a higher level of security due to the enclosed design of the retractable flaps. Commonly used in areas where stricter access control is required, such as corporate offices, high-security buildings, or transit stations.

Turnstiles may have a simpler and more utilitarian appearance. Suitable for areas where aesthetic considerations are secondary to functionality. Flap barriers often have a sleek and modern design. They are chosen for environments where aesthetics play a significant role, and a more sophisticated appearance is desired. 

In summary, while both turnstiles and flap barriers serve as access control solutions, flap barriers are generally considered to offer a higher level of security and a more modern aesthetic. The choice between them depends on the specific requirements of the location and the desired balance between security, functionality, and design.