Steps to Add a Testmonial Slider App on a Tumblr Site
Create your customized Testmonial Slider app, match your website's style and colors, and add Testmonial Slider to your Tumblr page, post, sidebar, footer, or wherever you like on your site.
How To Add a Testmonial Slider App on Tumblr:
Create a Free Testmonial Slider App
Start for free nowEdit Appearance
Go to Account Settings > Edit Appearance > Edit Theme.Edit HTML
Underneath Custom Theme, click Edit HTML.Paste the Script
Paste this exact POWR script into the HTML file, in 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 shortcode into the post. Then save. If you expand the post, you will see your new POWR Testmonial Slider.Click the POWR Settings Icon to open the POWR Editor.Begin to alter the Testmonial Slider plugin:
Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Testmonial Slider plugin.
All you need to know about our Testmonial Slider app is just a click away.
See the detailsRemove the Guesswork of Building Your Brand
Begin Building Brand Identity From Your Website
Congratulations on getting 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 may think only a 'techie' in the office or a self-proclaimed 'expert' on Facebook can develop a Testmonial Slider without a hitch.
Others look for low-cost alternative Testmonial Slider apps from overseas or open source Testmonial Slider apps that claim to have what they're looking for.
Get Back More Time With POWR
And it takes lots of time to customize and update a Testmonial Slider app, which will make more issues.
But, if you haven't built a strong security system, your site could be prone to hacking and other security issues. We thought of that!


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

Our team of expert engineers work 24/7 to make sure the POWR apps such as your Tumblr Testmonial Slider running smoothly for you.
CASE STUDY: Rbia Shades completely transformed their online experience
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.
Shortly after signing on with POWR, Rbia’s first step was to install a popup. They increased their contacts by over 250% (over 600 real contacts).
Soon after, they added our Social Feed app and grew their social media following to over 6000.
Next, they added a Media Slider as a visual way to quickly show their products to new site visitors as they entered their homepage to show how the accessories looked in real life. It showcases their products well and gave customers a great on-site experience.
In fact, they quickly found that visitors who interacted with POWR apps on their site stayed engaged 2.5 times longer than ever before.

Yes, POWR has an app for that.
See apps in action
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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 Testmonial Slider 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 Testmonial Slider allows you to edit every detail such as fonts, colors, borders, and spacing directly from the editor, ensuring your Testmonial Slider perfectly match your brand's identity.
This flexibility makes it easy to integrate and align with your site's look and feel.
Adding Testmonial Slider 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 Testmonial Slider and gather feedback from their audience.
Using POWR Testmonial Slider 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.


