Help center
Practical guides for UDID capture, certificate files, local signing, and common install errors.
How to get your iPhone UDID
Use Safari profile capture or enter the UDID manually before checkout.
Read guideUse certificate files in a local signing workflow
Online signing is unavailable during the grey release; use delivered files only in an authorized local workflow.
Read guideP12 and mobileprovision explained
Understand the two files delivered with an iOS signing certificate order.
Read guideImport certificate files into ESign
Use P12 and mobileprovision files with a local signing workflow.
Read guideImport certificate files into Feather
Prepare certificate files for a local signing tool workflow.
Read guideFix Unable to Verify App
Common reasons an installed signed app cannot be verified on iPhone.
Read guideWhat to do if an iOS certificate is revoked
Understand revoke risk and how warranty support is handled.
Read guideLocal signing and certificate care
Use certificate files locally when you do not want to upload IPA files.
Read guide