Be aware, when you install it, it adds codes to all your existing themes. After you delete it, it doesn't clean its ass, but leaves your code with a mess.
I deleted this app after I found a cheaper one, but their buttons are still there ! Hoax
The buttons are pretty but that's it.
Why I don't recommend this app:
1) Shopify auto generate an email to you whenever a Customer sign in to their account from your store. The email was "Undeliverable" for Twitter, Instagram, and Meetup. There is no such thing as for example yourUserName@instagram.com, yourUserName@twitter.com, yourID@meetup.com
Here is the Undelivered Mail Returned to Sender message" This is the mail system at host smtp.shopify.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. "
Therefore Customers will NEVER get a confirmation email that their account is active.
2) If you go to your Shopify store admin side. Click Customers, click on a Customer's name. I see that UserName@tumblr.com associated with the Tumblr sign on. It should've been associated with a gmail account that I signed with.
3) If you want Customers to sign up as a Subscription newsletter, they will never receive an email from you because 1) Most Customers don't check their email associated with a particular account. 2) Customers who signed in with Twitter, Meetup and Instagram, will never receive an email from you based on the above glitch outlined.