Conditional Menus is a simple yet useful WordPress plugin by Themify, which allows you to swap the menus in the theme as per specific conditions. In short, you can have different menus in different posts, pages, categories, archive pages, etc. It works with any WordPress theme that uses the standard WordPress menu function.

The changelog is located at: https://themify.org/changelogs/conditional-menus.txt

1. Login to your wp-admin > go to Plugins > Add New and upload the ‘conditional-menus.zip’
2. Activate the plugin

Admin interface