Since iPartition is no longer maintained, you are much better off using tools that are compatible with today’s macOS:
For basic resizing, adding, or deleting partitions, the built-in Disk Utility in your "Utilities" folder is the safest option. It fully supports APFS and understands macOS security. Ipartition 3.6.2 License File
If you are trying to use iPartition 3.6.2 today, you will likely run into several major hurdles: Since iPartition is no longer maintained, you are
If you are comfortable booting from a USB drive, GParted is a powerful, free, open-source tool for disk management, though it should still be used with caution on Mac-specific file systems. Since iPartition is no longer maintained
Modern macOS versions have strict security protocols that prevent third-party apps from modifying the boot drive’s partition table while the OS is running.