Install An Email List Signup App on Site123

The easy way to add Email List Signup to Site123 in minutes without coding or needing help from a developer.

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Steps to Add a Email List Signup App on a Site123 Site

Create your customized Email List Signup app, match your website's style and colors, and add Email List Signup to your Site123 page, post, sidebar, footer, or wherever you like on your site.

Undecided if our Email List Signup app will suit your needs? We have all the details you need.

See the details

Remove the Guesswork of Building Your Brand

Brand Identity Begins With a Great Website

Congratulations on starting to design your site online -- by getting your Site123 website live on the web!


Here comes the next big question: How do you get site visitors to engage and buy your product or service?

Email List Signup to Site123
Add Email List Signup to Site123

Website Element Customization is Next

People often ask a 'techie' friend to design an Email List Signup for them or hire a 'web guy' that one of their friends referred.


Others look overseas or for low-cost open source alternatives for Email List Signup.

POWR Saves You Valuable Time

Also, customizing these apps usually requires coding experience or another designer to help -- costing even more resources.


In a world where scammers infiltrate sites every day, many other Email List Signup apps out there aren't built with security in mind, which could expose your customers or worse -- crash your whole site. Not with POWR!

Add Email List Signup to Site123
Support feature

POWR has the most advanced security features, is built for scale, and currently supports high-volume sites on Site123 and other similar platforms.

security feature
POWR provides 24/7 customer support and a dedicated Help Center, so someone is always there to answer all your questions!

CASE STUDY: Rbia Shades is winning with POWR apps

After Rbia launched its website, they were looking for a solution to add new contacts for outreach.


They found POWR while looking for a popup solution on their site and started to see immediate results.

In just a few short months of installing a POWR Popup app, Rbia earned over 600 new contacts – a 250% growth.


Next, they used a Social Feed app and quickly noticed a leap in new followers on Instagram and 200% more engagement on their site.


Last came the Media Slider. A beautiful way to show off their products and accessories to every site visitor the moment they land on their site.

Add Email List Signup to Site123
Email List Signup to Site123
250% growth in contacts
Email List Signup to Site123
2x your engagement
Email List Signup to Site123
2x site session time

Yes, POWR has an app for that.

See apps in action

Trusted by the best in the biz!

POWR has helped over a half million businesses on every continent
(besides Antarctica, because of course not)

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Frequently Asked Questions

Learn more about how to add POWR apps to your website.