The short answer
The Trade Desk and Google DV360 lead for large enterprise budgets, while StackAdapt is the most reachable self-serve DSP for mid-market teams. Basis and Simpli.fi suit agencies, AdRoll suits retargeting-led ecommerce, and Choozle suits small agencies with no minimum spend. Most of these platforms do not publish prices, so expect a quoted fee.
Key takeaways
- A DSP is software that buys ad inventory in real-time auctions across many publishers.
- The Trade Desk and DV360 do not publish prices; access is quoted and enterprise-scale.
- StackAdapt states it has no minimum spend requirement, though most teams spend around $5,000 a month.
- AdRoll offers a free Starter plan; you pay for the ads you run.
- Choozle has no minimum spend and is built for small agencies.
| Pick | Best for | Starting price | Free plan |
|---|---|---|---|
| 1. The Trade Desk | Enterprise open-internet buying at scale | Pricing on request | No |
| 2. Google Display & Video 360 | YouTube-heavy enterprise campaigns | Pricing on request | No |
| 3. StackAdapt | Mid-market teams new to self-serve DSPs | Pricing on request; no minimum spend stated | No |
| 4. Basis Technologies | Agencies unifying programmatic and billing | Pricing on request | No |
| 5. Simpli.fi | Agencies needing addressable and geo targeting | Pricing on request | No |
| 6. AdRoll | Ecommerce retargeting on a small budget | Free Starter plan; you pay for ads run | Yes, Starter plan |
| 7. Choozle | Small agencies with modest budgets | Pricing on request | No |
How this shortlist was put together
Programmatic buying has a pricing problem: most platforms do not publish a rate card, so roundups that quote exact fees are usually quoting someone else's estimate. This post takes a different route. Each platform below was checked against its vendor's own pages on 13 November 2026 for what it does, who can access it, and whether it publishes a price. Where no price is published, the post says so plainly instead of inventing one. The ranking is by fit for a stated budget and team shape, not by size alone. No hands-on testing was done; findings come from published pricing and documentation, checked on 13 November 2026.
Programmatic advertising is automated buying of digital ad space: software bids for each impression in real time, using targeting rules you set. A DSP, or demand-side platform, is the software advertisers use to do that buying across exchanges and publishers.
1. The Trade Desk: best for enterprise open-internet buying at scale
The Trade Desk is the largest independent DSP, and independence is its pitch: it owns no media, so it never steers your budget toward inventory it profits from selling. It covers display, video, connected TV, audio, native and digital out-of-home across the open internet, with its Kokai platform as the current AI layer for planning and optimisation.
Pricing is quoted, not published. Third-party reports put platform fees around 15 to 20 percent of media spend with large quarterly commitments, but The Trade Desk publishes no universal minimum, so treat any single figure as a lead to verify in writing, not as a rate. Access usually runs through a direct agreement or an agency seat, and running it well needs a trained trader or agency team.
Skip The Trade Desk if your monthly programmatic budget is under about $20,000. Below that level the fees and the learning curve take too large a share of the budget, and a self-serve DSP will serve you better.
2. Google Display & Video 360: best for YouTube-heavy enterprise campaigns
Display & Video 360, or DV360, is Google's enterprise DSP. Its decisive advantage is inventory no other DSP can sell you: programmatic access to YouTube, including YouTube Select and programmatic guaranteed deals, plus Google's identity graph for cross-device targeting and tight links to Campaign Manager 360 and Google Analytics 360.
Like The Trade Desk, DV360 publishes no rate card. Its fee is a percentage of media cost set in each contract, and access comes through a direct Google Marketing Platform agreement or a certified partner. Practical minimums reported by partners sit in the tens of thousands of dollars a month, though Google publishes no universal figure. The trade-off is the walled garden: DV360 bids on open exchanges, but its optimisation naturally favours Google supply.
Skip DV360 if YouTube is not central to your media plan and your budget is mid-market. You would pay enterprise fees for an advantage you never use.
3. StackAdapt: best for mid-market teams new to self-serve DSPs
StackAdapt is the most reachable serious DSP in this list. It is a self-serve platform covering native, display, video, connected TV, audio, digital out-of-home and in-game inventory from one interface, with built-in creative tools and predictive bidding. Its pricing page states that it has no minimum spend requirement to get started, while adding that most teams hit their stride around $5,000 a month.
That combination explains its popularity with mid-market teams: you can open an account without an enterprise contract, and the interface is usable by a generalist marketer rather than a dedicated trader. The cost sits inside quoted CPMs rather than as a separate published fee, so ask for the all-in CPM in writing before you compare it with another DSP. Self-serve access is subject to an application and approval process.
Skip StackAdapt if you need person-level targeting. It works at account level, which limits some B2B account-based plays.
4. Basis Technologies: best for agencies unifying programmatic and billing
Basis Technologies sells an omnichannel platform that combines a DSP with search, social and site-direct buying in one system. Its distinguishing feature is not the buying itself but the workflow around it: campaign planning, approvals, reporting and financial reconciliation, including automated billing, all in one place. It covers display, video, native, connected TV, audio and digital out-of-home, and cites thousands of pre-negotiated private marketplace deals.
Pricing is custom and arranged through sales, and the platform is built for agency trading desks and in-house media teams managing complex multi-client campaigns. That is also its limit: setup and training take real investment, and a lean team will find the platform heavier than it needs.
Skip Basis if you are a single advertiser buying one channel. Its value shows up when you reconcile billing across many clients and channels.
5. Simpli.fi: best for agencies needing addressable and geo targeting
Simpli.fi is a programmatic platform built around precise location targeting, including addressable geo-fencing down to individual households and locations, alongside connected TV, display, mobile, video, native, audio and social. It offers self-service and managed-service options, and its reporting breaks results down to the individual data element, which suits local and multi-location advertisers.
Simpli.fi does not publish pricing, so expect a quoted arrangement. Reviewers praise its support and its flexible campaign budgets, and criticise the lack of price transparency, which means you should get fees in writing before launch. The platform suits agencies and brands that need location precision more than they need a simple self-serve start.
Skip Simpli.fi if you want a published price and a credit-card signup. You will need a sales conversation first.
6. AdRoll: best for ecommerce retargeting on a small budget
AdRoll is the low-budget entry point here. Its Starter plan is free, and you pay for the ads you run. That makes it the only pick in this list a small ecommerce brand can start using without a sales call or a minimum spend. It covers retargeting and display ads, dynamic ads for product catalogues, and basic email marketing tools, with cross-device attribution on paid plans.
The limit is scope. AdRoll is a retargeting and prospecting tool for direct-to-consumer brands, not a full omnichannel DSP for agencies. Its measurement and audience tools are lighter than the enterprise platforms, and costs rise with ad spend in the usual way, so a free plan does not mean free advertising.
Skip AdRoll if you need connected TV, audio or large-scale prospecting across many channels. It is a retargeting specialist, and it works best in that role.
7. Choozle: best for small agencies with modest budgets
Choozle is a self-serve DSP designed for smaller businesses and agencies, covering display, video, connected TV, audio and native buying in an interface a generalist can learn in days. It has no minimum spend requirement, which is its main selling point against the enterprise DSPs, and it is priced for agencies managing several clients on modest budgets.
Choozle does not publish a rate card on its pricing page, so the price field above reads pricing on request. Some directories list a $99 a month platform fee, but that figure is not on the vendor's own pricing page, so it is not quoted here as a vendor price. Ask Choozle for a written quote that separates any platform fee from media spend before you commit.
Skip Choozle if you need the deepest inventory access or the most advanced optimisation of the enterprise DSPs. It trades depth for access, and for a small agency that trade is often the right one.
A worked example: what $5,000 a month buys
Take a mid-market team with $5,000 a month for programmatic media, before fees. On StackAdapt, that is roughly the level where the platform says most teams hit their stride, so the full $5,000 can go to media and learning, with the platform fee inside the quoted CPM. On AdRoll, the same $5,000 goes to retargeting media, with no platform subscription in the way. On The Trade Desk or DV360, $5,000 a month would sit below the practical minimums partners report, and a 15 percent platform fee alone would take $750 of it, leaving $4,250 for media before data and verification fees. That is why budget, not features, should filter your shortlist first.
Choosing by budget and team
| Monthly programmatic budget | Shortlist |
|---|---|
| Under $1,000 | AdRoll for retargeting; add StackAdapt or Choozle when you can sustain $5,000 |
| $1,000 to $5,000 | StackAdapt or Choozle, self-serve |
| $5,000 to $20,000 | StackAdapt, Simpli.fi or Basis for agency work |
| $20,000 and above | The Trade Desk or DV360, with an agency or in-house trader |
Common mistakes with DSPs
- Comparing a platform fee with a CPM as if they were the same number. One DSP quotes a percentage of spend, another bundles its fee into the CPM. Ask every vendor for the all-in cost per thousand impressions on the same inventory before you compare.
- Buying YouTube access twice. If you already buy YouTube through Google Ads, a second DSP will not add YouTube reach. Only DV360 adds programmatic YouTube buying.
- Starting with too little budget for the algorithm to learn. Automated bidding needs volume. A $500 test on an enterprise DSP tells you almost nothing.
- Forgetting data and verification fees. Third-party audience segments, brand-safety checks and verification sit on top of media and platform fees on most DSPs.
- Signing without an exit clause. Ask how you export audiences, reporting history and creative before you sign, not when you want to leave.
How to shortlist in a week
Write down your monthly budget, your must-have channels and whether YouTube matters. If YouTube matters and the budget is enterprise-scale, talk to DV360. If the budget is enterprise-scale and independence matters, talk to The Trade Desk. If the budget is mid-market, open StackAdapt and Choozle and compare all-in CPMs on the same inventory. If you run an agency, add Basis and Simpli.fi to that comparison. Then run one live campaign on your top choice before you sign a longer agreement. For the paid-search side of the same budget, the best PPC management tool comparison covers the search counterpart, and Adziq's Google Ads services and Meta Ads services explain how managed buying works if you would rather hand the trading to a team. The tracking checklist before ads is worth reading before any of these platforms spend a dollar, since a DSP cannot fix broken conversion tracking.
Common questions
What is a programmatic advertising platform?
It is software, usually called a DSP, that buys ad space automatically in real-time auctions. You set targeting, budget and creative, and the platform bids for each impression across many publishers instead of you buying each placement by hand.
How much does programmatic advertising cost to start?
It depends on the platform. StackAdapt and Choozle have no published minimum spend, and AdRoll starts free apart from ad spend. The Trade Desk and DV360 are enterprise tools where practical minimums run into tens of thousands of dollars a month.
Why do most DSPs not publish prices?
Because the fee is usually a percentage of your media spend, set in a contract, and it varies with volume, channels and support. That is why this post says pricing on request where no public rate card exists, rather than quoting a third-party estimate as fact.
Which programmatic platform is best for small budgets?
AdRoll for retargeting, or StackAdapt and Choozle for broader display, video and connected TV buying. All three let a smaller advertiser start without an enterprise contract.
Can I run YouTube ads through any DSP?
No. Programmatic access to YouTube inventory is exclusive to Google Display & Video 360. If YouTube is central to your plan, DV360 has to be on your shortlist even though its entry cost is high.
Sources
- The Trade Desk DSP
- Google Display & Video 360
- StackAdapt pricing
- Basis platform
- Simpli.fi platform
- AdRoll pricing
- Choozle pricing
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