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
In your Tumblr dashboard, open your Account Settings. Select Edit Appearance and click Edit Theme.Edit HTML
Underneath Custom Theme, click Edit HTML.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.Create New Text Post
Return to your Tumblr Admin page, and create a new Text post.Paste Shortcode
Paste the POWR shortcode into the text 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 editing the following Testmonial Slider plugin directly inside of the Tumblr website:
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 publicizing your business online with Tumblr!
The next step is often getting website visitors and making sales, but how?


Make Your Website Elements Unique
Some may first take a stab at to DIY a Testmonial Slider app or 'knows a guy' that can build one in 'no time'.
Others attempt to find open source Testmonial Slider apps, or foreign companies that claim to offer Testmonial Slider apps for a bargain.
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 Testmonial Slider apps out there aren't built with security in mind, which could expose your customers or worse -- crash your whole site. Not with POWR!


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

Our Testmonial Slider comes with a team of expert engineers that work constantly for you, making sure your Testmonial Slider is always working smoothly.
CASE STUDY: Rbia Shades is winning with POWR apps
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 full 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.

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 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.


