The Apple ID used for signing does not need to turn off double authentication, and it can be used for signing IPA files regardless of whether the Apple ID is turned off or turned on double authentication, but the Apple ID with double authentication turned on needs to be verified for the first time, and it does not need to be verified again in the future. IPA file signed with certificate, the use time after installation depends on the validity period of the certificate. If the certificate is revoked within the validity period, the software will not be able to open again, which is often said? Put down the sign? The application with Apple ID signature is valid for 7 days, and the security will be effectively guaranteed.

IPA files signed with Apple ID cannot be installed on other devices. Applications signed with Apple ID are bound to the device ID. If the device ID of device A is selected when signing, the signed IPA file cannot be installed on device B: Do you need to do it manually after signing? Open the signed IPA location? , and then double-click Install with AISI Assistant.