Typically, no. These modified APK files are designed for the Android operating system. iOS uses .ipa files, and the process for "jailbreaking" an iPhone is far more complex and dangerous.
The headline feature is the unlocking of the VIP or Premium library. In the official app, series marked with a "Premium" or "VIP" crown are inaccessible to free users. This mod claims to remove that barrier, allowing users to stream any title on the platform without purchasing a monthly or yearly plan. ullu mod apk v29925 unlocked premium