ByteTag is a free Android application designed to enhance pet identification and safety. It allows users to update their pet's information in real-time and receive notifications whenever their pet's ByteTag is scanned. Key features include unlimited contact information storage, enabling users to add multiple phone numbers and addresses, which can be updated at any time.

Additionally, ByteTag offers real-time notifications that inform pet owners about their pet's current GPS coordinates and alerts them when their pet's ByteTag is scanned. The app also includes passive GPS tracking, allowing the person who scans the ByteTag to send their GPS location to the pet owner. Unlike many services, ByteTag does not require subscription fees, and individuals who find a lost pet do not need to have the app installed to assist in the identification process.