Install A Testmonial Slider App on Tumblr

Steps on adding Testmonial Slider to Tumblr in minutes with no coding and no help from a developer.

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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:

  1. Create a Free Testmonial Slider App

    Start for free now
  2. Edit Appearance

    Go to Account Settings > Edit Appearance > Edit Theme.
  3. Edit HTML

    Underneath Custom Theme, click Edit HTML.
  4. Paste POWR 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. New Text Post

    Return to your Tumblr Admin page, and create a new Text post.
  6. Paste Shortcode

    Paste this shortcode into the post. If you expand the post, you will see your new POWR Testmonial Slider.Click the POWR Settings Icon to open the POWR Editor.
  7. 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.

Need to know more about features and integrations of our Testmonial Slider app?

See the details

Remove the Guesswork of Building Your Brand

Establishing Brand Identity 101 - Your Website

You've already invested time and resources in building 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.

Testmonial Slider to Tumblr
Add Testmonial Slider to Tumblr

Make Your Website Elements Unique

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


Others look overseas or for low priced open source alternatives for Testmonial Slider.

Get Back More Time With POWR

Plus, updating and customizing a Testmonial Slider app can be difficult, and you may think you have to hire a developer.


Additionally, as your business expands, hackers could see an unsecured Testmonial Slider as a great opportunity to exploit your business and your customers. We consider this and built safeguards!

Add Testmonial Slider to Tumblr
Support feature

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.

security feature
Our top-notch customer support team is available to you 24/7 and a complete Help Center for answers to all common questions.

POWR's team of engineers are working around the clock to keep Tumblr Testmonial Slider and all 60+ other POWR apps working smoothly.

CASE STUDY: Rbia Shades completely transformed their online experience

A few months after Rbia Shades launched at local fairs and craft shows, they were looking for a way to sell online.


They wanted to visually appeal to site visitors and demonstrate the quality of their product and lightweight, ergonomic designs.


Their web host did not provide an adequate solution for this, and after some research, decided to give POWR a try.

In just a few short months of installing a POWR Popup app, Rbia earned over 600 new contacts – a 250% growth.


Next, they used a Social Feed app and quickly noticed a leap in new followers on Instagram and 200% more engagement on their site.


Last came the Media Slider. A beautiful way to show off their products and accessories to every site visitor the moment they land on their site.

Add Testmonial Slider to Tumblr
Testmonial Slider to Tumblr
250% growth in contacts
Testmonial Slider to Tumblr
Engagement up 2x
Testmonial Slider to Tumblr
2x more time on site

POWR apps are made to grow your online revenue.

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)

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Frequently Asked Questions

Learn more about how to add POWR apps to your website.