The system relies heavily on digital checkpoint verification, a key function of the guard-tour-mobile-app, which utilizes Near Field Communication (NFC) tags, Quick Response (QR) codes, or iBeacon technology placed at strategic points across the property. As the guard reaches a checkpoint, they use their mobile device to scan the tag or code, instantly logging a tamper-proof record of... https://exigasoftware.com.sg/guard-tour-mobile-app/