The Cydia IPA file is not typically distributed as a standalone file due to its complex dependencies and integration with the jailbroken iOS system.
Scam sites offer a file called Cydia.ipa that claims to install Cydia . This is impossible on stock iOS due to system sandbox restrictions. Such files are usually: cydia ipa file
The app will expire after 7 days. You must refresh it via your computer. The Cydia IPA file is not typically distributed