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Are Reddit Ads More Cost Effective Than Twitter Ads?

April 29, 2020 • By

Scott Ayres

Will Reddit Ads Outperform Twitter Ads?

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You might wonder, “Why should I advertise on Reddit?”  Most marketers have ignored the platform primarily known for trolls, memes, and conspiracy theories. 41% of Reddit users do all or almost all of their shopping online, compared to only 24% of those surveyed that are non-Reddit users, according to Civic Science.

Civic Science also found that Reddit users are twice as likely to pay attention to online social media ads, compared to those that don’t use Reddit.

reddit ads

In a previous Social Media Lab experiment, we found that Reddit ads had a much lower CPC than Facebook ads.

These results led us to compare Reddit ads versus other social media sites, such as Instagram.

Today, we’ll compare those same Reddit ads to Twitter ads. Will Reddit win again?

Reddit Stats

Check out these stats from Reddit in late 2019:

  • 430 million monthly active users – 30% YoY increase 
  • 199 million posts – and counting!
  • 1.7 billion comments – and counting!
  • 32 billion upvotes – and counting!
  • Monthly comments have grown 37% YoY.
  • Monthly view count has jumped 53% YoY.

Reddit is also on pace to see a significant increase in ad revenue over the next year, perhaps due to more and more marketers realizing the power of Reddit Ads.

reddit ads

In addition, Reddit is expected to account for nearly 12% of all Internet usage by 2023.

reddit ads

Twitter Stats

In 2019, Twitter’s revenue reached over $1 billion for the first time, an 11% increase over 2018.

Twitter also saw a 21% increase in daily active users, which means more users to advertise at:

twitter stats

Twitter continues to be a great platform to drive traffic with ads.

Any broad findings on average Cost Per Click (CPC) need to be taken with a grain of salt; each product/ad is different. It’s never a good idea to compare your CPC to others. For example, a product that sells for $10 will have a different CPC than one that sells for $1000.

Comparing costs for the same product and ads, however, is a good idea. And it is what we are doing here and making a conclusion based on the percentage differences of CPC between Twitter ads and Reddit ads.

We haven’t found any experiments comparing Reddit ads to other platform ads except for our own tests.

Based on our previous testing of Reddit ads, here’s my hypothesis.

Hypothesis: Reddit Ads result in a lower CPC than Twitter Ads.

twitter ad test

Testing Reddit Ads vs. Twitter Ads

The Ads

We will run two identical ads on both platforms, using two different links to Social Media Lab articles.

These are the ads on Reddit:

ads on reddit

reddit ads

The format may look unfamiliar to you or perhaps missing something, but that’s just the nature of posts on Reddit. Short text update, photo, and a link. No title or description from the link is parsed as we see on other social media sites.

Here are the corresponding Twitter ads:

ads for twitter

ads for twitter

Twitter ads look just like any other tweet you might see for a link. They each contain text in the tweet, article title, and description.

So while not 100% identical due to differences in the platform these ads are directing traffic to the same URLs using the same images.

team social media management
Ad Targeting

Due to different targeting options, the target audience will not be exactly the same on Reddit and Twitter. 

We will limit them to English language preference users and filter down to focus on the following countries/regions on both Reddit and Twitter:

  • Australia
  • Canada
  • United Kingdom
  • United States

Reddit allows targeting based on “Interests,” meaning the content or subreddit users are looking at.

We chose the following interests to target on Reddit:

  • Business
  • Podcasts
  • Computing
  • Virtual Reality

On Twitter, we targeted these hashtags:

  • instagrammarketing
  • socialmediamarketing
  • socialmediaexaminer

We also targeted:

  • Followers of the @Agorapulse Twitter account
  • Twitter users that had recently engaged with our tweets
  • Lookalike audience, as determined by Twitter

Note: We were careful when setting up the Twitter ad, ensuring it wasn’t allowed to post on the Twitter Audience Platform.

This targeting option is turned on by default on Twitter ads with the objective of traffic. Basically, your ad is placed in lots of apps (primarily games) and users have to click the link in the ad to proceed to the next level or to unlock an app feature.

The Twitter Audience Platform is great if you are running ads for mobile app installs. However, it is horrible if you are driving traffic to a website or blog posts due to the users not being interested in your product.

Ad Budget

The Reddit ad spent $509.61 (USD). Our budget was $550 but the ads expired before fully spending all of the budget.

For Twitter, the ad budget and spend were €550 (euros). We advertise in euros because our company, and Twitter account, are based in Paris. Conversion rates change often, but at the time of testing, this equals roughly $600 US dollars.

Data Comparing Reddit Ads vs Twitter Ads

For each platform, we’ll look at the following metrics:

  • Impressions
  • Clicks
  • CPC

CPC is the metric we will base our conclusion on. The other numbers will help you have some perspective on the ads.


  • Impressions: 454,646
  • Clicks: 1171
  • CPC: $0.44 (USD)


  • Impressions: 92,431
  • Clicks: 522
  • CPC: $1.20 (after converting to USD)

It’s obvious Reddit resulted in more than double the clicks, four times the impressions, and a much lower CPC.

In percentages, the differences are more revealing than the raw numbers:

  • Impressions: 391.88% higher on Reddit
  • Clicks: 124.33% higher on Reddit
  • CPC: 63.33% lower on Reddit

reddit ads cpc

Reddit Ads Outperformed Twitter Ads

Reddit ads win this comparison between Twitter ads due to the much lower CPC in our experiment.

However, Twitter ads did have a much better Click Through Rate (CTR). Your CTR tells you the percentage of users who click on your ad after seeing it. 

A high CTR signals your ad was appealing and properly targeted.

Check out the CTR of both ad sets:

  • Twitter: 0.56%
  • Reddit: 0.26%

The ads on Reddit needed to be seen twice as much in order to get as many clicks as Twitter.

I’m not shocked by this due to Reddit being a completely cold market, whereas Twitter was a warm market. Meaning those users we targeted on Twitter either followed us, had engaged with us, or were a look-alike audience.

Some marketers believe a higher CTR is always best, but for our test, we focused on CPC. And for this experiment, Reddit outperforms in every category.

reddit ads

*After this test I have continued to run ads on Reddit every month, spending an additional $1,000. Through those ads, we are seeing on average a CPC of $0.28, with a CTR of 0.35%. We have improved the performance to a small degree by targeting better subreddits and interests within the “Business” and “Marketing” categories.

Reddit is a gold mine for driving traffic. The Social Media Lab recommends you start considering Reddit ads if you want to drive traffic to your site. (And don’t we all want that?)