The expiration of the Apple App signature means that the app cannot be opened in the device of the ios system, and it is usually displayed as follows:

1, the APP application opens, flashes back, and the screen is black, so it can't be opened.

2. In the case that the enterprise signature certificate has been confirmed to be credible, the APP application clicks no response or prompts that the enterprise certificate is not credible.

3.app applications cannot be downloaded normally through public links.

If there are the above three forms of expression, you can be sure that your app signature has expired or your app signature certificate has been sealed or expired. At this time, you need to contact your signature service provider to solve it.

Apple app software is generally downloaded from the app Store, but how to install many apps that can't be put on the shelves? They are signed by Apple applications. Only by signing the Apple App can you bypass the review of the Apple Store and install it directly on the ios device. However, this signature method is effective. Generally speaking, the service providers who sign up for iOS in the market charge monthly, and they will renew their fees when they expire, otherwise they will not be able to use them.

What is the expiration of apple App signature? What if the App signature is inconsistent?

What is the inconsistency of Apple App signatures?

If this happens in the signature, it is generally that the ipa installation package has been locked after being signed by the previous signature service provider, so when re-signing, it will prompt Apple App that the signature is inconsistent. In this case, the unsigned ipa file installation package needs to be re-signed.

If this happens during installation, it is usually because the signing certificate has been changed. At this time, you need to uninstall the previous app and then reinstall or update it.