Many biometric access vendors differ in whether the algorithm is in-house, handles high concurrency, and integrates well. Below: ZKTeco vs CoolCode.

# 1. In-house Algorithm #

CoolCode face reading uses fully in-house image decoding and matching, with liveness detection and millisecond on-device 1:N matching under 300ms per person — in-house code means continuous scenario iteration.

# 2. High Concurrency & Metro-grade #

CoolCode terminals run at metro turnstiles across 25 cities for peak-flow face-pass, emphasizing no queueing and stable passage — fit for campuses, government and transit.

# 3. Edge-Cloud & Remote O&M #

Permission delivery, access logs and alarms sync to cloud in real time for remote control and centralized audit, lowering O&M cost of coexisting systems.

# 4. Open Integration #

Open API and standard interfaces (Wiegand / RS485 / RJ45 / Relay) connect to existing platforms; private deployment meets data compliance.

# Summary #

ZKTeco has broad global footing in biometrics and attendance; CoolCode stands out on in-house machine vision, metro-grade concurrency and open private deployment. Choose by how much the project weights in-house recognition, concurrency and compliance.