"Follow Blog via Email" widget available?

Is there a simple “Follow Blog via Email” widget available? One that doesn’t need code to install? I’m a complete newbie here. Many thanks!

I’m using the Sparkling theme via WordPress installed on my website and I have an iMac OS 10.8.5.

The most simplest one we also use for our website is Jetpack plugin and its subscription module/widget.

You can read more about Jetpack on its official page and here you will find how to add subscriptions widget to your website.

Many thanks!