Statement:
The level of criminal activities is lower in Iran than in Somalia

In the The Most Criminal Countries rating Iran holds position #50 2022 out of 139 and Somalia is #14 out of 139 2022.
Position of Iran is better than position of Somalia.
Somalia is leader of the "The Most Criminal Countries" rating. So it is wise to avoid visiting the country or, at least, you need to take additional actions to protect your life and belongings, compared to Iran

Referencies:

  1. The Most Criminal Countries 2022 by Numbeo
    The countries in the rating sorted by 'Crime Index' in descending order.
    Iran 'Crime Index' value is 49.75
    Somalia 'Crime Index' value is 66.41