GOA
50+
Downloads
Everyone
info
About this app
Grading Owl is the official mobile authentication tool of Grading Owl Authentication (GOA). It verifies the authenticity of a GOA-graded card.
1. NFC and Certification Number Check
Each GOA-graded card is embedded with an NFC chip which stores an unclonable cryptographic authenticator of the card.
With an easy tap on the phone, users can easily access the grading information of a GOA-graded card. Users can also check the information by inputting the certification number manually.
2. Activity
Upon checking the record of each GOA-graded card, the app will record the users' history. Users can revisit search records through the "Activity" page.
1. NFC and Certification Number Check
Each GOA-graded card is embedded with an NFC chip which stores an unclonable cryptographic authenticator of the card.
With an easy tap on the phone, users can easily access the grading information of a GOA-graded card. Users can also check the information by inputting the certification number manually.
2. Activity
Upon checking the record of each GOA-graded card, the app will record the users' history. Users can revisit search records through the "Activity" page.
Updated on
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No data shared with third parties
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No data collected
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What’s new
Bug fixes
App support
phone
Phone number
+85298877850
About the developer
GRADING OWL AUTHENTICATION LIMITED
it@gradingowl.com
Rm 1701-1703 STRAND 50
50 BONHAM STRAND
上環
Hong Kong
+852 9250 4090