Best Demand Side Platform (DSP) For Free
Top picks for Demand Side Platform (DSP) available for Free
8.7
SpotScore
Maximize your programmatic potential with advanced analytics.
Free Trial available
Freemium not available
Bidtheatre offers custom pricing plan
8.6
SpotScore
Maximize in-app reach with intelligent programmatic bidding.
Free Trial available
Freemium not available
Pocketmath offers custom pricing plan
8.5
SpotScore
Efficiently connect and reach your audience at optimal cost.
Free Trial available
Freemium not available
Showing 1-8 out of 8

List of the Best Demand Side Platform (DSP) For Free as of September 2026
8.7
SpotScore

Bidtheatre
Maximize your programmatic potential with advanced analytics.
Best for: SMB teams · Mid-market · Enterprise
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What is Bidtheatre?
BidTheatre's Demand Side Platform (DSP) is a strategic buying platform designed to enable 2nd-screen buying for all. BidTheatre's DSP offers programmatic buying from a network of direct and branded buyers and puts advanced analytics at the fingertips of demand sources. Advertisers can manage ...
Read more about BidtheatreBidtheatre offers custom pricing plan
8.6
SpotScore

Pocketmath
Maximize in-app reach with intelligent programmatic bidding.
Best for: SMB teams · Mid-market · Enterprise
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What is Pocketmath?
PocketMath is a Demand Side Platform (DSP) provider, providing a real-time bidding solution to advertisers who want to buy in-app advertising. PocketMath merges programmatic technology with the innovative mobile targeting capabilities of iOS and Android devices to deliver advertisers the ...
Read more about PocketmathPocketmath offers custom pricing plan
Spotsaas Ads
Want your product up here? Put it in front of buyers the moment they're comparing your category.
8.5
SpotScore

AdNabu
Efficiently connect and reach your audience at optimal cost.
Best for: SMB teams · Mid-market · Enterprise
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What is AdNabu?
AdNabu is a demand side platform (DSP), designed to help user consume video more efficiently. The software connects advertisers and publishers, allowing advertisers to access publishers’ inventory and serve ads to their audience through AdNabu’s Demand Side Platform (DSP). This allows ...
Read more about AdNabu8.2
SpotScore

Adapex
Transforming media buying with superior targeting technology.
Best for: SMB teams · Mid-market · Enterprise
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What is Adapex?
Adapex is a Demand Side Platform, modernizing media buying on open platforms. It offers premium targeting capabilities, patented algorithms, and the A.I. engine to break the barriers of targeting at scale. By using technology instead of pushing inferior cookies and cracked data to fill ads, it ...
Read more about AdapexAdapex offers custom pricing plan
8.2
SpotScore

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What is AdLib?
AdLib is a demand side platform (DSP) enabling you to access the world's largest online advertising exchanges. Our exclusive, time-based idea's platform empowers advertisers to optimize their campaigns by actively buying in real-time. This intelligent platform builds user segments based on ...
Read more about AdLib7.7
SpotScore

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What is Viewst?
Viewst is an intuitive, user-friendly platform revolutionizing the way you design beautiful banners in no time! Forget spending hours manually creating enticing social media ads, now you can take advantage of the 14 display banner sizes and 23 social media formats to launch your online ...
Read more about ViewstStarts from $12/Month when Billed Yearly, also offers free forever plan
7.7
SpotScore

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What is AdCritter?
AdCritter is a Demand Side Platform that enables advertisers to run large-scale digital media campaigns across the most popular ad exchanges & DSPs. Advertisers can manage their ads programmatically in a single interface and optimize for performance with real-time data, affiliate tracking and ...
Read more about AdCritter
Markopolo.ai
Target the perfect audience with Markopolo.ai.
Best for: SMB teams · Mid-market · Enterprise
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What is Markopolo.ai?
Markopolo.ai is an ad tech startup providing ad buyers with access to the most perfect audience: search engines and content publishers. Its cloud-based demand side platform (DSP) enables advertisers to optimize and prioritize their digital advertising campaigns across multiple search engines ...
Read more about Markopolo.aiMarkopolo.ai offers custom pricing plan
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About the reviewer
Rajat Gupta is the founder of Spotsaas. Over the past two years, he has reviewed 2,000+ tools across CRM, HR, AI, and finance — applying hands-on product research and a background in commerce and the CFA program to evaluate software through a business and ROI lens. His goal: help teams make software decisions they won't regret.
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
