For applications that can't be uploaded to the App Store, you can sign them with a certificate or with an Apple ID, and then install them on the device normally. Prepare the certificate or Apple ID and the IPA file to be signed, and use AISI Assistant to quickly complete the signing.

Signature with certificate: it is suitable for signing the self-purchased certificate, and the validity period of the signature is 1 year.

Signature with Apple ID: It is suitable for developers or ordinary users to sign with Apple ID for free, and the signature is valid for 7 days.

Open IPA signature in AISI assistant toolbox:

Click "Add IPA File" to select the IPA file to be signed:

Click "Import Certificate" to select the certificate and description file to be signed, and then enter the certificate password after adding:

(If you don't have an enterprise certificate, just select "Sign with Apple ID" and follow the prompts to log in to Apple ID. Refer to the tutorial signed with Apple ID below)

After adding all IPA files and certificate files, you can choose the file saving path after signing according to your own needs:

Check the IPA document and certificate used for signing, and then click Start Signing.

Select "Sign with Apple ID-Add Apple ID", then enter the Apple ID and password to sign, and select or enter the device ID of the corresponding device (referring to the device where the IPA file will be installed after signing):

Click "OK" after the inspection is correct. It is recommended to connect an iOS device to AISI Assistant before operation, and ensure that the Device ID can be read. If no device is connected, you need to manually enter the device ID. After adding the Apple ID, the signature information will be displayed in the following list:

Then add the IPA file to be signed, check the IPA file and the Apple ID used for signing, and click "Start signing". After successful signing, you can install the application through AISI Assistant. After installation, before opening the application for the first time on an iOS device, remember to trust the application in Settings-General-Profile.

Please note that the saved path of the signed IPA file and the original file may be different. Click the "Open Signed IPA Location" button after signing, and all signed IPA files available for installation will be stored in this directory. Please pay attention to the difference.