On August 3, 2019, due to apple’s extensive review, some ios (apple ) users can’t use and download iOS app because apple’s signature changes. GGBTC took measures to deal with it in the first time. Currently, the APP has been re-signed and users need to uninstall from your device and re-download from GGBTC official website. We apologize for any inconvenience caused.
Thank you for your understanding and support.