Steps to Add a Countdown Cart App on a Tumblr Site
Create your customized Countdown Cart app, match your website's style and colors, and add Countdown Cart to your Tumblr page, post, sidebar, footer, or wherever you like on your site.
How To Add a Countdown Cart App on Tumblr:
Create a Free Countdown Cart App
Start for free nowEdit Appearance > Edit 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 underneath Custom Theme.Paste the 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.Text Post
Back inside the Tumblr site editor, add a new Text Element.Paste the Shortcode
Paste this shortcode into the post and save. If you expand the post, you will see your new POWR Countdown Cart.Click the POWR Settings Icon to open the POWR Editor.To edit your Countdown Cart on Tumblr:
Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Countdown Cart plugin.
All you need to know about our Countdown Cart app is just a click away.
See the detailsRemove the Guesswork of Building Your Brand
Establishing Brand Identity 101 - Your Website
Congratulations on publicizing your business online with Tumblr!
The next step is often gaining website visitors and making sales, but how?


Now You Have To Make Your Elements Unique
Some small business owners try to develop a Countdown Cart app by themselves or get an expensive web designer that promises they can build one.
Others try to enlist web design companies overseas that claim to offer Countdown Cart apps for reduced prices or attempt to use open source code.
Save Time With POWR
Also, customizing and updating a Countdown Cart app involves even more time, and is likely to cause new bugs.
As your company continues to progress, you're likely to face security issues, as hackers may attempt to manipulate vulnerabilities in the Countdown Cart app. POWR has you covered!


All POWR apps are built to scale with your business on Tumblr, so we offer the most advanced security features and high-volume capabilities on the market to keep your customers (and you) safe.

POWR's team of engineers are working around the clock to keep Tumblr Countdown Cart and all 60+ other POWR apps working perfectly.
CASE STUDY: POWR put Rbia Shades on the success track
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.

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)
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 Countdown Cart 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 Countdown Cart allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Countdown Cart perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Countdown Cart 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 Countdown Cart and gather feedback from their audience.
Using POWR Countdown Cart 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.


