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

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  2. Appearance > Theme

    Go to your Account Settings and click Edit Appearance. Then click Edit Theme.
  3. Edit HTML

    Underneath Custom Theme, click Edit HTML.
  4. Paste Script

    Paste this exact POWR script into the HTML file, in between the Head tags. Then click Update, and save.
  5. Text Post

    Go back to the Tumblr dashboard and add a new Text post.
  6. Paste Shortcode

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

    Go to the live Tumblr website and click the Settings Icon in the upper right corner of the Testmonial Slider plugin.

Undecided if our Testmonial Slider app will suit your needs? We have all the details you need.

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Remove the Guesswork of Building Your Brand

Establishing Brand Identity 101 - Your Website

If you have your Tumblr website published, you’ve tackled the biggest challenge in building an online presence. Awesome!


But next comes a tough question: how can you engage, captivate, turn, and support more visitors?

Testmonial Slider to Tumblr
Add Testmonial Slider to Tumblr

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 expand a Testmonial Slider without a hitch.


Others look for low priced alternative Testmonial Slider apps from overseas or open source Testmonial Slider apps that claim to have what they're looking for.

Reduce Time Spent by Half With POWR

Also, customizing and updating a Testmonial Slider app involves even more time, and is likely to cause new complications.


As your company continues to expand, you're likely to face security issues, as hackers may attempt to take advantage of vulnerabilities in the Testmonial Slider app. POWR has you covered!

Add Testmonial Slider to Tumblr
Support feature

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.

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.

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: POWR put Rbia Shades on the success track

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 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.

Add Testmonial Slider to Tumblr
Testmonial Slider to Tumblr
Grow contacts by 250%
Testmonial Slider to Tumblr
Engagement up 2x
Testmonial Slider to Tumblr
2x time on site

Every POWR app works on any platform.

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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.