Publisher Ad Server Comparison: Google Ad Manager vs Revive, AdButler, Kevel, Epom and Broadstreet

Publishers choose an ad server for control: direct-sold campaign delivery, pacing, frequency capping, targeting and clean reporting. The decision also shapes how you work with programmatic demand, since the ad server is where direct deals and exchange bids compete for each impression.

Industry standards matter in this category. The IAB Tech Lab OpenRTB specification defines how real-time bids are exchanged, and ads.txt lets publishers declare authorized sellers to limit fraud. Privacy rules such as the GDPR also affect targeting and consent handling, and the NIST Privacy Framework offers a practical way to manage that risk.

This comparison uses SaaSPodium listing data and vendor-documented capabilities for six products from our Publisher Ad Server Software category. None has user ratings on SaaSPodium yet.

Overview: How the Six Ad Servers Differ

The six ad servers split into four models: a broad managed platform (Google Ad Manager), a free self-hosted server (Revive Adserver), SaaS ad serving (AdButler, Broadstreet) and builder or white-label platforms (Kevel, Epom). Your hosting preference and sales model decide which fits.

• Google Ad Manager: described as a complete ad revenue engine; freemium on SaaSPodium with enterprise capabilities for direct and programmatic sales.
• Revive Adserver: free, open source ad serving software that you host yourself.
• AdButler: a hosted ad serving platform with a listed entry price of $199.
• Kevel: an API-first platform for building custom ad products, with a listed starting price of $3,000.
• Epom: a white-label ad server aimed at networks and publishers, from $250.
• Broadstreet: an ad manager for local news and magazines, from $299.

Features: Direct Sales, Programmatic and Targeting

All six serve ads and report delivery, but they differ in depth. Google Ad Manager covers the widest range of direct and programmatic features, while Revive and the SaaS tools focus on core delivery, and Kevel exposes delivery logic through APIs.

• Direct-sold delivery: priority, pacing, frequency caps and targeting are standard expectations; verify each vendor’s controls for your deal types.
• Programmatic demand: Google Ad Manager is built to connect with exchanges and bidders; smaller tools may rely on tags or integrations, so ask how header bidding is supported.
• Native and custom formats: Kevel’s API-first design suits native or in-app ad units that standard tags cannot express.
• Reporting: request sample reports, including revenue and fill rate.

Ask each vendor how they handle consent signals for regulated regions, because misconfigured consent can put revenue and compliance at risk.

Pricing: From Free to API Contracts

Pricing ranges from free (Revive Adserver) through a few hundred dollars a month for hosted tools (AdButler, Epom, Broadstreet) to a listed $3,000 for Kevel. Google Ad Manager has a free entry tier, with costs tied to volume and demand sources.

Prices below are the starting figures shown on SaaSPodium as of October 2026 and may change; the billing period is not always stated, so confirm it with each vendor.

• Revive Adserver: no license cost, but you pay for hosting, maintenance and security.
• AdButler ($199), Epom ($250), Broadstreet ($299): tiered SaaS plans that usually scale with impressions or features.
• Kevel ($3,000): priced for teams building ad products on the API.
• Google Ad Manager: free tier, with costs and revenue share depending on the setup; read the current terms.

Integrations and Architecture

Architecture is the clearest divider: Revive runs on your own servers, the SaaS options run in the vendor’s cloud, and Kevel provides a decision engine you call from your own application. Choose based on your engineering capacity and data-ownership needs.

• Self-hosted (Revive): full control of data and code, with responsibility for scaling, uptime and patching.
• Hosted ad serving (AdButler, Epom, Broadstreet, Google Ad Manager): faster setup, less operational overhead.
• API-first (Kevel): integrates with custom apps, marketplaces and retail media experiences.
• Standards: look for ads.txt support, OpenRTB compatibility and clear consent signal handling.

Pros and Cons

Each platform trades control, cost and capability differently. The table-free summary below lists the main advantage and the main limit of each, based on vendor positioning and category norms.

• Google Ad Manager: pro, breadth of direct and programmatic tools; con, complexity can be heavy for small sites.
• Revive Adserver: pro, free and open; con, you maintain infrastructure and security.
• AdButler: pro, hosted and scalable; con, paid from the first tier.
• Kevel: pro, flexibility through APIs; con, needs engineering resources and a higher budget.
• Epom: pro, white-label options for networks; con, confirm feature depth for programmatic needs.
• Broadstreet: pro, built for local publishers; con, narrower focus than general ad servers.

Who Should Choose Which

Choose Google Ad Manager for broad programmatic and direct sales, Revive for budget-constrained technical teams, AdButler or Broadstreet for simple hosted serving, Kevel for custom ad products, and Epom for white-label networks.

A small blog or local newsletter typically fits Broadstreet or AdButler. A mid-sized publisher with engineers might pick Revive to avoid fees or Google Ad Manager for demand access. A marketplace or app building sponsored listings will find Kevel closer to its needs. You can evaluate Google Ad Manager first, since its free tier makes comparison easy.

Measuring Ad Server Performance

Judge any ad server on three numbers: effective revenue per thousand impressions (eCPM), fill rate and delivery accuracy against contracted goals. Track them before and after a pilot so the comparison rests on data rather than demos.

Total ad revenue is earnings from direct and programmatic sources in the period. Total impressions is the number of ads actually rendered. Ad requests is the number of times your pages asked for an ad. A rising eCPM with a falling fill rate can signal over-aggressive price floors, so read both together.

• Latency: measure how long ad calls add to page load, since slow ads hurt both user experience and viewability.
• Discrepancy: compare your server’s counts with buyer-side numbers; gaps above a few percent deserve investigation.
• Support: test response time on a real issue during the pilot.

Verdict

There is no universal winner: Google Ad Manager is the safest default for most publishers needing programmatic reach, while Revive, AdButler, Kevel, Epom and Broadstreet each win when your model is self-hosted, simple, API-driven, white-label or local.

Shortlist two tools, run a pilot with real campaigns, and compare delivery accuracy, reporting speed and support responses. Use the ads.txt and consent checks above as a baseline for every vendor.

Frequently Asked Questions

What is the best free ad server for publishers?
Revive Adserver is the leading free option because it is open source and self-hosted, so you pay only for hosting and maintenance. Google Ad Manager also has a free entry tier, but its costs and terms depend on your setup.

Can I migrate from Google Ad Manager to another ad server?
Yes, but plan for work: you must recreate ad units, line items and targeting, update tags on every page, and keep ads.txt entries aligned. Run both systems in parallel on a section of the site first to compare delivery and revenue.

How long does it take to implement a publisher ad server?
A basic hosted setup with a few ad units can take days, while migrating a large site with direct deals, programmatic demand and reporting integrations typically takes weeks to months. Budget time for tag deployment, QA and consent configuration.