All comparisons
Amazon Publisher Services (APS) vs Google AdX (via GAM)
Side by side on the same benchmark criteria.
Up to 4 at once.
| Criteria |  Amazon Publisher Services (APS) | Google AdX (via GAM) |
|---|---|---|
| Weighted Score | 4.0/5 | 4.0/5 |
| Pricing | No publisher fee; a 2.5% service fee is charged to bidders. | Free 'Small Business' tier available for up to 90-200 million monthly impressions; Ad Manager 360 requires custom enterprise pricing. |
| Platform Type | Supply-side platform | Supply-side platform |
| Revenue yield & RPM uplift | 4.6/5 | 4.8/5 |
| Demand access & header bidding | 4.7/5 | 4.7/5 |
| Ad quality & brand safety controls | 4.2/5 | 4.6/5 |
| Publisher control & transparency | 2.8/5 | 4.5/5 |
| Payment terms & reliability | 3.3/5 | 4.8/5 |
| Page speed & Core Web Vitals impact | 4.3/5 | 3.6/5 |
| Reporting & reconciliation | 3.0/5 | 4.5/5 |
| Integration & ad-ops workload | 2.8/5 | 2.0/5 |
| Eligibility & onboarding | 3.0/5 | 3.0/5 |
| Consent & privacy readiness | 2.8/5 | 4.6/5 |
| Strengths | ✓ Direct access to Amazon advertiser demand ✓ Server-side setup can reduce page latency | ✓ Access to premium advertiser demand typically offering significantly higher CPMs ✓ Publishers utilizing AdX's dynamic flooring, Google Open Bidding, and preferred deals can expect 20-50% revenue increases |
| Limitations | ✗ Primarily benefits publishers with scale for Amazon demand ✗ UAM is invitation-only and limited to Google Ad Manager sites the publisher represents directly | ✗ Requires an existing Google Ad Manager account and technical expertise to manage complex header bidding configurations effectively ✗ Significantly more challenging and complex to manage and optimize |
Amazon Publisher Services (APS)
4.0
Rating
★ 4.0/5
Pricing
No publisher fee; a 2.5% service fee is charged to bidders.
Platform
Supply-side platform
Scores
Revenue yield & RPM uplift
4.6
Demand access & header bidding
4.7
Ad quality & brand safety controls
4.2
Publisher control & transparency
2.8
Payment terms & reliability
3.3
Page speed & Core Web Vitals impact
4.3
Reporting & reconciliation
3.0
Integration & ad-ops workload
2.8
Eligibility & onboarding
3.0
Consent & privacy readiness
2.8
Strengths
✓ Direct access to Amazon advertiser demand
✓ Server-side setup can reduce page latency
Limitations
✗ Primarily benefits publishers with scale for Amazon demand
✗ UAM is invitation-only and limited to Google Ad Manager sites the publisher represents directly
Google AdX (via GAM)
4.0
Rating
★ 4.0/5
Pricing
Free 'Small Business' tier available for up to 90-200 million monthly impressions; Ad Manager 360 requires custom enterprise pricing.
Platform
Supply-side platform
Scores
Revenue yield & RPM uplift
4.8
Demand access & header bidding
4.7
Ad quality & brand safety controls
4.6
Publisher control & transparency
4.5
Payment terms & reliability
4.8
Page speed & Core Web Vitals impact
3.6
Reporting & reconciliation
4.5
Integration & ad-ops workload
2.0
Eligibility & onboarding
3.0
Consent & privacy readiness
4.6
Strengths
✓ Access to premium advertiser demand typically offering significantly higher CPMs
✓ Publishers utilizing AdX's dynamic flooring, Google Open Bidding, and preferred deals can expect 20-50% revenue increases
Limitations
✗ Requires an existing Google Ad Manager account and technical expertise to manage complex header bidding configurations effectively
✗ Significantly more challenging and complex to manage and optimize
