5 Social Proof Apps to Consider in 2024 [updated]

Aino ValtonenAino Valtonen
Last edited: June 26th, 2024

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social proof apps

After writing this article in 2022, we’ve needed to revise it to make sure we present the best social proof apps.

Using one of these is the best way to build trust and credibility for your business. It is also an inexpensive way to get new customers!

If you don’t know where to start with social proof, you can read our comparison of the best social proof apps.

Social Proof Apps: Definition

Social proof app is software or application that helps you make use of the psychological phenomenon of social proof.

Social proof makes people refer to other people in new situations, and follow their behavior.

social proof definition by robert cialdini

Practical example: 

When you visit a new gym, you probably spend some time looking around and observing what other people are doing. How to use the lockers, what is that machine used for, where’s the shower, and so on.

Another example: 

You come across a new online shop. You wonder whether it is trustworthy and if the products are good. 

What do you do?

  1. You ask your friends if they have used the shop, and
  2. Google for experiences and reviews by other people.

And what would you do, if you noticed that other people are at the very moment making purchases on this online shop, and recommending it?

social proof online shop

That is exactly what social proof is all about!

Social proof apps help you leverage this phenomenon through user generated content, pop ups, and social proof notifications.

Benefits of Using Social Proof Apps

Social proof apps have multiple benefits compared to not having them!

Let’s see what we got here.

Increase Conversions and Sales

Social proof is powerful, and it is provenly a great way to boost sales and conversions.

Ruokaboksi reached a 37% increase in sales with a single social proof popup display on the checkout page, and Mutjutin experienced a 22,6% better conversion rate with reviews.

No Coding Knowledge Required

The best social proof apps are user friendly: you don’t have to know anything about coding in order to use them.

Many of them function on a copy and paste principle, and offer customization options.

user-friendly social proof app

Less Manual Work

You could add social proof to your website by hand (and tbh: you should include it e.g. in your copy, but that’s another story) but the applications help you do it with zero hassle.

For example, if you are now adding reviews and video reviews to your website by hand, you can stop that!

Get Live Data

The software solutions allow you to get live data on customer behaviors and showcase it in real time. 

Live sales and other customer behaviors create urgency for the online shoppers and website visitors, and make them trust your brand more.

urgency social proof pop up that uses fear of missing out

Use on Multiple Platforms

The social proof apps presented below all let you use them on unlimited websites. 

Many applications are compatible with multiple platforms, such as WordPress, Shopify, and Squarespace.

So, if you are doing marketing on several platforms, you can use a single app to manage all of their pop ups.

5 Best Social Proof Apps Compared

Here’s the list of 5 best social proof applications and software of 2023.

We have compared the prices and features for you!

1. Trustmary

Trustmary lets you collect social proof from your customers in the form of

Once you have the social proof, you can easily add it to your website to boost sales.

best social proof app

Display reviews and video reviews on your website with elegant and dynamic testimonial widgets. 

Existing online reviews can also be imported from third-party review sites. They are a great way to showcase the trust and credibility of your brand!

The free forever plan is great to test out the benefits.

Key features include:

  • All review widgets
  • Widget branding
  • 200 monthly views on review widget
  • 3rd party review import source
  • Collect more social proof

On top of the user-generated content and reviews, Trustmary offers FOMO and visitor activity popups.

What services does it include? – Pop ups, UTM tags, testimonial importing, help documentation, chat and email support.

You can also start a free trial of the paid plans.

2. Fomo.com

social proof apps compared

Fomo is a social proof app that creates urgency for your online store and rushes the shopper’s purchasing decision.

Fomo displays recent orders from other customers in real time. These sales pop ups make your customers want to purchase as well.

It is possible to integrate the app with other apps to also showcase e.g. email sign ups, active visitors and form submissions.

What does it cost? – 19$/month

How many visitors does it reach? – Max. 25,000 visitors per month.

What services does it include? – Pop ups, UTM tags, help documentation and email support.

3. TrustPulse

social proof apps for different cms compared

TrustPulse is a social proof messages app that helps you create FOMO pop ups and notifications for your online store.

It includes a brand friendly theme editor and various social proof nudges.

What does it cost? – 5$/month

How many visitors does it reach? – Max. 2,500 visitors per month.

What services does it include? – Pop ups, help documentation and support through forms.

4. Evidence.io

social proof apps

Evidence.io lets you add various pop up messages on your website’s pages.

Add conversion notifications, streaks, announcements, offers and reviews to affect customer behaviors.

What does it cost? – 40$/month

How many visitors does it reach? – Max. 5,000 visitors per month.

What services does it include? – Unlimited pop ups, help documentation and email support.

5. ProveSource

comparing social proof app options available

ProveSource’s key features include social proof sales pop ups, combination of customer activities, visitor counts and other notifications.

What does it cost? – It’s free!

How many visitors does it reach? – Max. 1,000 visitors per month.

What services does it include? – Pop ups, UTM tags, help documentation, chat and email support.


We compared the 5 best social proof apps and learned why adding social proof messages to a website is a must for succeeding in digital marketing.

Here’s a recap on the comparison:

Trustmary SoloFomo.comTrustpulseEvidence.ioProveSource
(5000 views for 19$/mo!)
25 000/mo2 500/mo5 000/mo1 000/mo
Use on domainsUnlimitedUnlimitedUnlimitedUnlimitedUnlimited
UTM tagsYesYesNoNoYes
Testimonial importingYes
– Google,
– FB,
– Capterra,
Help documentationYesYesYesYesYes
Chat & email supportYesEmail onlyFormEmail onlyYes

Creating social proof is easy with the help of these tools, and it really helps boost conversion rates and increase sales!

Read more about social proof:


What is a social proof app?

Social proof applications help you to showcase the trust that people have for your business. They can be done in multiple ways, such as reviews, visitor counts, and live activities done by customers.

What is a Fomo pop-up?

A FOMO (fear of missing out) is a phenomenon that makes people think they will lose something if they do not participate in an activity with other people. Fomo pop ups make use of this phenomenon and showcase e.g. how many people are signing up for your service or buying your products.

Which social proof app to use with my Shopify store?

Trustmary works great with all Shopify stores, and it can be used to add product ratings. Here’s our easy guide to adding reviews to Shopify. No matter where you have your third-party reviews, you can add reviews from all sources to Shopify.

With Trustmary, you can also get those positive reviews to show up on Google search next to your product. In other words, you improve your SEO results while adding social proof.

Aino Valtonen
Aino Valtonen
Aino Valtonen is a Growth Marketer at Trustmary. With a background in Linguistics, she is an expert in language and communication, as well as local SEO and review marketing.


Trustmary is the most effective way to convert more sales by improving digital trust.