matsuoshi

Maintenance Mode for Non-administrator login users. 
This plugin block access to Admin-page by Editor, Writer etc. 
Only Administrator can access the Admin-page while this plugin is active.
Meanwhile, this plugin doesn’t block visitors’ access to the site.

Admin Hot Maintenance Mode

Maintenance Mode for Non-administrator login users. Only Administrator can access the Admin-page.

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

Admin Hot Maintenance Mode vs Maintenance mode for WooCommerce