Chartboost Review

Overview

Verticals
Ad Types
Display, Mobile, Video
Incorporation Country & City
San Francisco, United States
Launched Year
2011
Website URL
Company Types
Ad Network, DSP

About Chartboost

Chartboost is a mobile-focused advertising platform built primarily for app developers and mobile game publishers. The company became widely known through rewarded video and interstitial advertising inside gaming apps, later expanding into mediation, bidding infrastructure, and programmatic monetization. Since being acquired by Zynga and later integrated into AppLovin’s broader ecosystem, changes across the industry have caused Chartboost to continue positioning itself as a strong monetization platform for mobile publishers looking to optimize video ad revenue.

  • Strong rewarded video focus
  • Mobile gaming specialization
  • Built-in mediation platform
  • Header bidding support

Editorial Review by TopAdNetworks

Chartboost remains one of the most recognizable names in mobile gaming monetization. Even though the ad-tech market has become crowded with mediation giants like AppLovin MAX and Unity LevelPlay, Chartboost still maintains a strong presence among mobile developers focused on rewarded video revenue.

The platform’s biggest advantage is its gaming-first DNA. Unlike broader display networks trying to adapt to gaming, Chartboost was designed around mobile game engagement from the start. Rewarded videos, interstitials, and in-app monetization mechanics remain its strongest area.

Another important factor is Chartboost Mediation. Instead of relying entirely on waterfall logic, the company now supports bidding integrations and OpenRTB-style competition between multiple demand sources. That shift matters because modern mobile monetization increasingly depends on real-time competition rather than static waterfalls.

However, Chartboost is no longer the default choice it once was. Developers now compare it directly against MAX, AdMob mediation, and Unity LevelPlay.

In practice, many teams use Chartboost as part of a broader mediation stack rather than as a standalone monetization solution.

Community feedback also shows that fill rates and performance can vary significantly depending on geo mix and ad format strategy.


Company Overview

Chartboost operates as a mobile advertising and app monetization platform focused primarily on gaming publishers. The company originally gained traction through direct mobile game advertising but later expanded into mediation and programmatic infrastructure.

The platform now supports rewarded video, interstitials, banners, and bidding-based monetization across Android and iOS. Much of its ecosystem revolves around SDK integrations for Unity and mobile app frameworks.

One of the company’s biggest evolutions came through Chartboost Mediation. The platform shifted toward hybrid monetization models that combine waterfall and bidding demand sources.

According to current documentation, Chartboost supports OpenRTB bidding flows and integrations with major ad networks, including AdMob, Unity Ads, Liftoff Monetize, Meta Audience Network, Mintegral, and InMobi.

The company also invested heavily in SDK modularity and open-source tooling. Mediation SDK 5.0 introduced a lighter architecture separating mediation layers from partner adapters, improving flexibility and update stability for developers.


How The Platform Works

Chartboost works through SDK integrations inside mobile applications. Developers integrate the Chartboost SDK directly into Android, iOS, or Unity projects, then configure placements for rewarded video, interstitials, banners, or mediation demand.

Once integrated, the platform runs auctions between available advertisers and demand partners. Depending on the configuration, publishers can use either bidding-based monetization or a traditional waterfall setup.

The mediation layer allows multiple ad networks to compete simultaneously for impressions. That competition improves fill rates and helps maximize eCPM across different geographies and user segments.

Advertiser Onboarding

Chartboost primarily targets app developers and gaming publishers rather than traditional web publishers.

  • Create a Chartboost account and verify the application
  • Integrate the SDK into Android, iOS, or Unity projects
  • Configure rewarded video, interstitial, or banner placements
  • Connect mediation partners and bidding sources
  • Launch campaigns and optimize monetization performance

Ad Formats And Placement

  • Rewarded video ads inside mobile games
  • Interstitial fullscreen mobile ads
  • Banner and adaptive banner ads
  • Rewarded interstitial formats
  • Mobile display placements

Targeting And Optimization

  • Geo targeting
  • Device and OS targeting
  • Placement-level optimization
  • Bidding and waterfall monetization
  • eCPM optimization through mediation
  • Real-time auction competition

Key Differentiators

Chartboost positions itself as a gaming-focused mobile monetization platform with strong rewarded video infrastructure and mediation support.

1. Rewarded Video Specialization

Rewarded ads remain the platform’s strongest monetization format. Mobile gaming publishers heavily rely on rewarded mechanics because they generally drive higher engagement and stronger eCPMs than standard banners.

2. Mediation and Bidding Infrastructure

Chartboost Mediation supports both waterfall and bidding setups, enabling developers to create competition among demand partners rather than relying solely on static CPM ordering.

3. Strong Unity Ecosystem Support

The platform maintains extensive Unity integration support through adapters, SDK documentation, and mediation tooling designed specifically for mobile game developers.

4. Lightweight SDK Architecture

Recent SDK versions separated mediation layers from partner adapters, reducing SDK complexity and improving update management for developers handling multiple networks.


Ideal Use Cases

Chartboost works best for mobile-first publishers and gaming studios focused on video monetization.

  • Mobile game monetization
  • Rewarded video ad strategies
  • Unity-based mobile game development
  • Mediation stack optimization
  • Interstitial and rewarded ad monetization

Target Clients

Advertisers

Chartboost primarily serves mobile advertisers targeting gaming audiences and app users. Campaigns typically focus on user acquisition, app installs, and mobile engagement rather than traditional web traffic.

Publishers

The platform is designed mainly for mobile app developers and gaming studios looking to maximize revenue from rewarded video and interstitial advertising. It is especially relevant for Unity developers using mediation-based monetization strategies.

Key Features & Ad Formats

Chartboost combines mobile monetization infrastructure, mediation tools, and SDK integrations into a platform optimized for gaming environments.


Supported Ad Formats

  • Rewarded Video Ads: High-engagement video units commonly used in mobile games.
  • Interstitial Ads: Fullscreen mobile ads displayed between gameplay or app transitions.
  • Banner Ads: Standard and adaptive banner formats for mobile apps.
  • Rewarded Interstitial Ads: Hybrid formats combining rewarded mechanics with full-screen delivery.

Targeting Options

  • Geo targeting
  • Device targeting
  • OS targeting
  • Placement targeting
  • Behavioral optimization

Traffic Sources

  • Mobile gaming apps
  • Android applications
  • iOS applications
  • Unity game inventory
  • Rewarded video inventory

Pros & Cons

Strong rewarded video monetization
Gaming-focused infrastructure
Extensive Unity integration support
Supports both bidding and waterfall mediation
Lightweight SDK improvements in newer versions
Broad mediation partner compatibility
Less dominant than AppLovin MAX or Unity LevelPlay in 2026
Requires technical SDK integration knowledge
Fill rate inconsistencies reported by some developers
Better suited for gaming apps than general mobile content apps

Pricing & Business Model

Chartboost primarily operates through revenue-sharing monetization tied to ad impressions, rewarded video engagement, and mediation demand.

Revenue performance depends heavily on geography, ad format mix, retention metrics, and user engagement. Rewarded video ads generally generate the highest eCPMs across gaming apps.

Publishers monetize inventory through SDK-based integrations, while advertisers buy inventory through bidding auctions, mediation flows, and user acquisition campaigns.

Pricing Structure

On the publisher side (app developers):

  • CPM (Cost Per Mille): Core model where publishers earn revenue per thousand impressions served in their apps.

On the advertiser side (brands and app marketers):

  • CPM (Cost Per Mille): Advertisers pay for impressions across mobile inventory.
  • CPI (Cost Per Install): Primary model for app campaigns where advertisers pay per install generated.
  • CPA (Cost Per Action): Payment triggered by specific in-app events such as registrations or purchases.
  • CPV (Cost Per View): Used for video campaigns where advertisers pay for completed video views.

Minimum Spend

  • Self-Serve: No publicly fixed minimum spend
  • Managed: Enterprise and larger publisher agreements handled directly with sales teams

Chartboost User Reviews

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Comparison & Alternatives

Chartboost is worth a close look if you want a gaming-focused ad network with strong rewarded video monetization and mediation support. It performs best for mobile developers running Unity-based apps and engagement-heavy gaming experiences.

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