Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Head-to-head · Ad Verification Software

Integral Ad Science vs Peer39 Verification

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Integral Ad Science #2 in Ad Verification Software 8.6/10 Pricing on request ✓ 0 of 2 features Visit site
Peer39 Verification #5 in Ad Verification Software 7.8/10 Pricing on request ✓ 2 of 2 features Visit Peer39

Integral Ad Science leads on 0 checks, Peer39 Verification on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreIntegral Ad Science · 8.6/10
  • Most featuresPeer39 Verification · 2 of 2

Integral Ad Science scores higher on our rubric for ad verification software: 8.6 against 7.8 out of 10; our editors rank them #2 and #5.

Integral Ad Science is the better fit for teams pairing verification with contextual targeting. Peer39 Verification is the better fit for teams focused on CTV and pre-bid controls.

  • Integral Ad Science fits best

    Teams pairing verification with contextual targeting

  • Peer39 Verification fits best

    Teams focused on CTV and pre-bid controls

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. How we rank.

Side by side

Feature Integral Ad Science 8.6/10 Visit ↗ Peer39 Verification 7.8/10 Visit ↗
At a glance
Editor score 8.6 7.8
Ranking #2 in Ad Verification Software #5 in Ad Verification Software
Best for Teams pairing verification with contextual targeting Teams focused on CTV and pre-bid controls
Pricing model Paid Paid
Starting price Pricing on request Pricing on request
Free plan — —
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Docs Email
Integrations 4 integrations 24+ integrations
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Integral Ad Science 0/2 · Peer39 Verification 2/2
Viewability measurement Not checked yet ✓ (best)
Invalid traffic measurement Not checked yet ✓ (best)
Specs
Brand safety controls Not checked yet Custom
Supported ad formats Not checked yet CTV, display, mobile apps, social
Measurement standards Not checked yet IAB/MRC standard; MRC-accredited viewability measurement
Ad platform integrations Not checked yet Adform, Adtheorent, Amazon, Basis Technologies, Bidtellect, Blis, Cadent, Catalina, DeepIntent, Equativ, FreeWheel, Genius Sports, illumin, Index Exchange, MediaMath, Mediasmart, Microsoft Advertising, Nexxen, Sportradar, The Trade Desk, Undertone, Viant DSP, Yahoo, Zeta DSP
Our review
Pros
  • Detects ad fraud and provides brand safety and suitability controls.
  • Measures viewability across screens and devices.
  • Adds contextual and audience targeting with automated segment optimization.
  • CTV signals include program, genre, rating and content advisories.
  • Pre-bid controls address brand suitability and invalid traffic.
  • MRC-accredited viewability and post-campaign reporting are included.
Cons
  • Pricing is handled through sales rather than a self-serve plan.
  • No free plan is offered.
  • Listed support is documentation, which may not suit teams seeking other channels.
  • Pricing is available only by contacting sales.
  • The product is web-based and cloud-deployed.
  • Support is listed through email.
Our verdict

Integral Ad Science (IAS) provides digital advertising measurement, verification, targeting, and optimization for advertisers, agencies, publishers, and technology partners. Its verification capabilities address ad fraud, brand safety,…

Read the review →

Peer39 Verification helps advertisers and agencies apply ad verification controls before buying across CTV, display, mobile apps and social. Its pre-bid brand-safety and suitability controls can be tailored with custom keywords and…

Read the review →
  1. Integral Ad ScienceAd Verification Software 8.6Pricing on request
  2. Peer39 VerificationAd Verification Software 7.8Pricing on request

Strengths and trade-offs

  • Integral Ad Science — where it wins

    • Detects ad fraud and provides brand safety and suitability controls.
    • Measures viewability across screens and devices.
    • Adds contextual and audience targeting with automated segment optimization.

    Where it doesn't

    • Pricing is handled through sales rather than a self-serve plan.
    • No free plan is offered.
    • Listed support is documentation, which may not suit teams seeking other channels.

  • Peer39 Verification — where it wins

    • CTV signals include program, genre, rating and content advisories.
    • Pre-bid controls address brand suitability and invalid traffic.
    • MRC-accredited viewability and post-campaign reporting are included.

    Where it doesn't

    • Pricing is available only by contacting sales.
    • The product is web-based and cloud-deployed.
    • Support is listed through email.
  • Integral Ad Science8.6/10 · Pricing on request

    Ad verification paired with contextual targeting, audience insights, and campaign optimization.

    Visit siteFull verdict →
  • Peer39 Verification7.8/10 · Pricing on request

    CTV-focused pre-bid controls with viewability measurement and post-campaign reporting.

    Visit Peer39Full verdict →

More comparisons

All ad verification software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update