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:
Create a Free Full Screen Popup App
Start for free nowEdit Theme
In the Tumblr Editor, open your Account Settings and select Edit Appearance. On the next page, select Edit Theme.Edit HTML
Click on the Edit HTML link.Copy and 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.New Text Post
Go back to the Tumblr dashboard and add a new Text post.Paste the Shortcode
Paste the POWR shortcode into the text post, then save If you expand the post, you will see your new POWR Full Screen Popup.Click the POWR Settings Icon to open the POWR Editor.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.
Undecided if our Full Screen Popup app will suit your needs? We have all the details you need.
See the detailsRemove 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.


Make Your Website Elements Unique
Some may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can design a Full Screen Popup without a hitch.
Others look for low priced alternative Full Screen Popup apps from overseas or open source Full Screen Popup apps that claim to have what they're looking for.
Get Back More Time With POWR
Also, customizing and updating a Full Screen Popup app calls for even more time, and is likely to cause new issues.
As your company continues to progress, you're likely to face security issues, as hackers may attempt to take advantage of vulnerabilities in the Full Screen Popup app. POWR has you covered!


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.

Our team of expert engineers work 24/7 to ensure the POWR apps such as your Tumblr Full Screen Popup running smoothly for you.
CASE STUDY: Rbia Shades wins big with POWR
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.

Every POWR app works on any platform.
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)
Frequently Asked Questions
Learn more about how to add POWR apps to your website.
Yes, any POWR app will work perfectly on any website. What’s better, is the patented POWR Live Editor is the same regardless of the app.
- Easily add more than one (for free)
- Edit to your needs directly from your live site
- Changes are made instantly
Absolutely! The POWR Full Screen Popup widget is optimized for mobile, ensuring that it looks great and functions smoothly across all devices, including phones and tablets.
This optimization enhances user experience, contributing to higher engagement rates on your Tumblr site.
POWR Full Screen Popup allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Full Screen Popup perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Full Screen Popup to your Tumblr site is fully outlined above and straightforward with no coding required.
Simply follow POWR's setup guide, which is as easy as copy/pasting the provided code snippet into your site's HTML.
This ease of installation makes it convenient for Tumblr site owners to implement Full Screen Popup and gather feedback from their audience.
Using POWR Full Screen Popup on your Tumblr site offers numerous benefits, including enhanced customization options and easy installation without coding.
These features help improve your site's user engagement by allowing visitors to provide valuable feedback, leading to better online growth.


