Install A Popup App on Site123

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

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Email sign up popup and free shipping popup example images created with POWR Popup.

Steps to Add a Popup App on a Site123 Site

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

Need to know more about features and integrations of our Popup app?

See the details

Remove the Guesswork of Building Your Brand

A Solid Brand Identity Starts on Your Website

Congratulations on getting your business online with Site123!


The next step is often getting website visitors and making sales, but how?

Popup to Site123
Add Popup to Site123

Website Element Customization is Next

Some small business owners try to develop a Popup app by themselves or get an expensive web designer that promises they can build one.


Others try to enlist web design companies overseas that appear to offer Popup apps for low prices or attempt to use open source code.

Reduce Time Spent by Half With POWR

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 Popup 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 Popup to Site123
Support feature

Because POWR is built for scale, has the most advanced built-in security and high-volume capabilities of any other Popup app on the market, we protect you while you grow on Site123.

security feature
All common questions are answered by searching POWR's robust Help Center or by reaching out to our customer support team, which is available 24/7.

Our team of expert engineers work relentlessly to make sure the POWR apps such as your Site123 Popup running smoothly for you.

CASE STUDY: Rbia Shades is winning with POWR apps

Rbia Shades needed to expand beyond its region by bringing its products online. They needed a low-maintenance, non-techie solution.


After much research, they chose POWR as their no-code tool of choice.

Rbia grew its contact list by 250% using POWR Popup to collect new email addresses from first-time site visitors.


They also added POWR Social Feed to their site and saw a 200% spike in engagement from their site visitors. They also saw a big jump in social media followers and now have over 11K followers on Instagram.

Add Popup to Site123
Popup to Site123
Contacts growth 250%
Popup to Site123
2x your engagement
Popup to Site123
2x more time on site

All POWR apps are built for peak-performance.

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.