Jordan Patterson

Redirects any unauthenticated users to another url and sends them a ‘302 Moved Temporarily’ status. 
Ideal for sites that are under development especially if the site is being moved or currently has an older version. 
Adds an item to the ‘Options’ menu on the admin panel where you can enter the site you want to redirect users to.

302 Moved Temporarily

Need to redirect your visitors temporarily? This plugin will redirect any unauthenticated users to another url and still allow logged in users to use  …

netfett

The maintenance mode only puts the WooCommerce Shop into maintenance mode, but not your entire website. Decide for yourself which text or content should be displayed.
Possible reason for the “Coming soon” mode: 
Your shop is not quite finished yet, but you want to show your visitors that a shop is about to open on your website.
Possible reason for the “maintenance mode”: 
You made an error while configuring or maintaining your products, and you can’t find the error right away. Then switch your shop to “maintenance mode” and take your time to correct the error.
And the best thing is: it’s free! 
Yes, it’s absolutely free. There is no premium version.

Maintenance mode for WooCommerce

Does what it says and is easy

Maintenance mode for the Woocommerce Shop

302 Moved Temporarily vs Maintenance mode for WooCommerce