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Head-to-head · Ad Tech Software

Quantcast vs StackAdapt

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Quantcast #1 in Ad Tech Software 9.2/10 Free plan · 30-day trial Free planFree trial✓ 0 of 3 features Visit Quantcast
StackAdapt #4 in Ad Tech Software 8.6/10 Pricing on request ✓ 3 of 3 features Visit StackAdapt

Quantcast leads on 1 check, StackAdapt on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreQuantcast · 9.2/10
  • Free planonly Quantcast
  • Free trialonly Quantcast
  • Most featuresStackAdapt · 3 of 3

Quantcast scores higher on our rubric for ad tech software: 9.2 against 8.6 out of 10; our editors rank them #1 and #4.

Quantcast offers free plan; StackAdapt doesn't.

Quantcast is the better fit for teams seeking broad, established omnichannel ad buying. StackAdapt is the better fit for mid-market and enterprise programmatic advertisers.

  • Quantcast fits best

    Teams seeking broad, established omnichannel ad buying

  • StackAdapt fits best

    Mid-market and enterprise programmatic advertisers

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Quantcast 9.2/10 Visit ↗ StackAdapt 8.6/10 Visit ↗
At a glance
Editor score 9.2 8.6
Ranking #1 in Ad Tech Software #4 in Ad Tech Software
Best for Teams seeking broad, established omnichannel ad buying Mid-market and enterprise programmatic advertisers
Pricing model Free plan + paid Paid
Starting price Free plan · 30-day trial Pricing on request
Free plan ✓ (best) —
Free trial 30 days —
Deployment Cloud Cloud
Platforms Web Web
Support Docs Docs
Compliance GDPR SOC 2, PCI DSS
Integrations 10 integrations 14 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Quantcast 0/3 · StackAdapt 3/3
Audience targeting Not checked yet ✓ (best)
Campaign automation Not checked yet ✓ (best)
Conversion tracking Not checked yet ✓ (best)
Specs
Platform focus Not checked yet Programmatic
Ad formats Not checked yet Mixed
Billing model Not checked yet Usage-based
Our review
Pros
  • Plans and activates campaigns across display, video, CTV, mobile, and audio
  • Real-time audience insights combine demographic, behavioral, and contextual analysis
  • Conversion APIs, reporting tools, and first-party data onboarding support measurement
  • Activates campaigns across CTV, DOOH, display, native, video, audio and more.
  • Combines first-, third-party, contextual, lookalike and ABM targeting.
  • Includes AI bid optimization, forecasting, tracking and cross-channel attribution.
Cons
  • Campaign-based CPM pricing varies rather than following fixed subscription tiers
  • Documentation is the listed support channel
  • The broad feature set may exceed teams focused on one advertising channel
  • Pricing is contact-sales with usage-based CPM, CPC and CPE billing.
  • No free plan is offered.
  • Support is documented through docs; cloud is the listed deployment.
Our verdict

Quantcast is an advertising and audience-measurement platform for publishers, brands, agencies, and performance marketers. It brings audience planning, targeting, activation, optimization, conversion tracking, attribution, and reporting…

Read the review →

StackAdapt is a cloud-based demand-side advertising platform from StackAdapt Inc. It serves brands, agencies, and marketing teams operating mid-market or enterprise programmatic campaigns. Buying spans display, native, video, connected TV,…

Read the review →
  1. QuantcastAd Tech Software 9.2Free plan · 30-day trial
  2. StackAdaptAd Tech Software 8.6Pricing on request

Strengths and trade-offs

  • Quantcast — where it wins

    • Plans and activates campaigns across display, video, CTV, mobile, and audio
    • Real-time audience insights combine demographic, behavioral, and contextual analysis
    • Conversion APIs, reporting tools, and first-party data onboarding support measurement

    Where it doesn't

    • Campaign-based CPM pricing varies rather than following fixed subscription tiers
    • Documentation is the listed support channel
    • The broad feature set may exceed teams focused on one advertising channel

  • StackAdapt — where it wins

    • Activates campaigns across CTV, DOOH, display, native, video, audio and more.
    • Combines first-, third-party, contextual, lookalike and ABM targeting.
    • Includes AI bid optimization, forecasting, tracking and cross-channel attribution.

    Where it doesn't

    • Pricing is contact-sales with usage-based CPM, CPC and CPE billing.
    • No free plan is offered.
    • Support is documented through docs; cloud is the listed deployment.
  • Quantcast9.2/10 · Free plan · 30-day trial

    Broad omnichannel ad buying with audience intelligence, measurement, and APIs.

    Visit QuantcastFull verdict →
  • StackAdapt8.6/10 · Pricing on request

    Multi-channel programmatic buying with AI optimization, targeting, attribution and API access.

    Visit StackAdaptFull verdict →

More comparisons

All ad tech software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update