Apologies if this is a bad question:
Implementation guide starts out with creating a mobile property in launch - what if you don't have launch?
1. Adobe launch is a free product (with adobe analytics etc.), ask your adobe support to provisition it to your org.
2. If that doesn't workout well, you can still use SDK 4.X for ios which don't need adobe launch to run
As @Asheesh_P mentioned - Launch is available to any Adobe customer. You can use a bundled configuration as described here: https://aep-sdks.gitbook.io/docs/using-mobile-extensions/mobile-core/configuration#using-a-bundled-f... , but using Launch is the best way to generate the configuration and offers a number of benefits going forward.