How to Add A Full Screen Popup App to a Tumblr Website

Learn the steps to add Full Screen Popup to your Tumblr website in minutes with no coding or a developer.

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Steps to Add a Full Screen Popup App on a Tumblr Site

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

How To Add a Full Screen Popup App on Tumblr:

  1. Create a Free Full Screen Popup App

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  2. Edit Appearance > Edit Theme

    Go to your Account Settings and click Edit Appearance. Then click Edit Theme.
  3. Edit HTML

    Underneath Custom Theme, click Edit HTML.
  4. Paste Script

    Paste this exact script into your Tumblr HTML file. It's best to add it between the Head tags. Then click Update, and save.
  5. Create New Text Post

    Back inside the Tumblr blog editor, add a new Text Element.
  6. Copy and Paste Shortcode

    Paste this shortcode into the post. If you expand the post, you will see your new POWR Full Screen Popup.Click the POWR Settings Icon to open the POWR Editor.
  7. Begin to change the Full Screen Popup plugin:

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Full Screen Popup plugin.

Not sure if our Full Screen Popup app is right for you? Find out more about its features and integrations.

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Remove the Guesswork of Building Your Brand

Begin Building Brand Identity From Your Website

You've already invested time and resources in launching your business online just by having a Tumblr website.


Your work isn't done yet, though! Now it's time to attract and engage visitors, then make them into customers.

Full Screen Popup to Tumblr
Add Full Screen Popup to Tumblr

Then You Must Customize Your Elements

People often ask a 'techie' friend to design a Full Screen Popup for them or hire a 'web guy' that one of their friends referred.


Others look overseas or for low-cost open source alternatives for Full Screen Popup.

POWR Saves You Valuable Time

Plus, updating and customizing a Full Screen Popup app can be difficult, and you may think you have to hire a developer.


Additionally, as your business develops, hackers could see an unsecured Full Screen Popup as a great opportunity to exploit your business and your customers. We consider this and built safeguards!

Add Full Screen Popup to Tumblr
Support feature

POWR supports high-volume sites on Tumblr and prioritizes the security of our Full Screen Popup app, as well as all 60+ apps, to keep any bad actors at bay.

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

Our Full Screen Popup comes with a team of expert engineers that work constantly for you, making sure your Full Screen Popup is always working smoothly.

CASE STUDY: Rbia Shades completely transformed their online experience

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.

Rbia started to see success with POWR Popup almost immediately, adding over 600 new contacts in the first 90 days.


They then realized that there was a complete suite of other solutions they could use to improve their online experience for site visitors.


Soon, Rbia embedded an Instagram Feed app on their website and noticed site visitors who interacted with the app doubled the time spent on their page while growing their followers to over 11k on Insta at the same time.

Add Full Screen Popup to Tumblr
Full Screen Popup to Tumblr
Contacts growth 250%
Full Screen Popup to Tumblr
2x engagement improvement
Full Screen Popup to Tumblr
Time on site up 2x

All POWR apps are built for peak-performance.

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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.