Unlike apps on the App Store, modified .ipa files are not vetted by Apple. Malicious code could be hidden within the app to steal login credentials or personal data.
Google monitors for suspicious API usage. While rare, using modified clients can lead to temporary or permanent bans of your Google account. youtube premium.ipa
The risk-to-reward ratio is catastrophic. Unlike apps on the App Store, modified
Would you like a shorter App Store–style version or a more technical review for developers? Unlike apps on the App Store
: Popular computer-based tools that allow you to "sign" the IPA using your own Apple ID. E-Sign / Scarlet