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Chartboost Mediation

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What Chartboost Mediation is

Chartboost Mediation is a free monetization service for mobile app developers on Android, iOS and Unity. It uses bidding to create competition for ad impressions, with a unified auction that runs real-time bidding across demand sources and shows why a particular bid won. Chartboost says the service connects developers with more than 50 demand sources. Developers can use bidding or waterfall setups, although some partners do not support both. The analytics dashboard filters performance by app, placement, ad type, network source, country and date range, and users can create custom reports. One-click A/B testing lets developers compare bidding, non-bidding and other monetization setups. Chartboost bidding supports banner, rewarded video and interstitial ads, including rewarded video placements. Listed partners include AdMob/Google, Amazon Publisher Services, AppLovin, InMobi, Meta Audience Network and Unity Ads (Levelplay), among others. Chartboost says there are no demand fees for its bidding partners and that publishers earn the winning bid. The SDK integrations are listed at version 5.4.0 for Android and iOS, and 5.3.0 for Unity. Chartboost also says the SDK and Unity plug-in are each under 340 KB. A free platform account is available; receiving earnings requires payment details.

Who it suits

It suits mobile app developers who want to monetize Android, iOS or Unity apps through bidding and waterfall arrangements. Its reporting filters, custom reports and A/B testing can help teams compare ad setups and review performance.

What it does well

Free platform account and free plan.
Access to more than 50 demand sources.
Supports bidding and waterfall setups.
Custom reports and performance filters are available.
One-click A/B testing covers multiple monetization setups.
No demand fees for its bidding partners, according to Chartboost.

What to know first

Some partners do not support both bidding and waterfall methods.
Receiving earnings requires payment details.
The Reporting API is limited to 40 requests every 10 minutes.
Unsupported consent platforms require a custom adapter module.

Limits

The Mediation Reporting API allows 40 requests every 10 minutes. Unsupported consent platforms require a custom adapter module.

Getting started

Create a free Chartboost platform account.
Import your apps.
Select the networks you want to use.
Set up placements and ad groups.
Integrate the Mediation SDK for Android, iOS or Unity.
Set up payment details to receive earnings.

Verdict

Choose Chartboost Mediation if you develop mobile apps and want bidding, waterfall options, reporting and ad setup comparisons in one monetization service. Look elsewhere if you need every partner to support both mediation methods or need a consent platform that works without a custom adapter.

Questions

Is Chartboost Mediation free?

Yes. It has a free plan and a free Chartboost platform account.

Which platforms does it support?

Android, iOS and Unity SDK integrations are listed. Android and iOS are listed at version 5.4.0, and Unity at version 5.3.0.

Which ad formats are supported for Chartboost bidding?

The listed formats are banner, rewarded video and interstitial.

Which mediation partners are listed?

They include AdMob/Google, Amazon Publisher Services, AppLovin, BidMachine, InMobi, Liftoff Monetize, Meta Audience Network, Mintegral, MobileFuse and Unity Ads (Levelplay).

Does Chartboost charge demand fees for bidding partners?

Chartboost says it charges no demand fees for its bidding partners and that the winning bid equals publisher earnings.

What consent management options are supported?

The Core SDK supports open-source consent adapters for Google User Messaging Platform and Usercentrics. Other consent platforms require a custom adapter module.

Facts from Chartboost Mediation's own pages

A/B testing: A one-click toggle lets publishers test bidding against non-bidding or another monetization setup. · docs.chartboost.com, 5 Oct 2026
Account: The getting-started documentation offers a free Chartboost platform account and directs users to set up payment details to receive earnings. · docs.chartboost.com, 4 Oct 2026
Ad formats: The documented formats include banners, rewarded video, and interstitial ads, with some partners also supporting adaptive banners or rewarded interstitials. · docs.chartboost.com, 5 Oct 2026
Auction: Its unified auction runs real-time bidding across demand sources and provides visibility into why a specific bid won. · chartboost.com, 4 Oct 2026
Consent management: The Core SDK requires a consent management platform, and Chartboost documents open-source adapters for Google User Messaging Platform and Usercentrics on Android. · docs.chartboost.com, 5 Oct 2026
Data collection: The data-safety disclosure lists device or other identifiers and other app performance data as collected and shared off-device for analytics, advertising or marketing, and fraud prevention, security, and compliance. · docs.chartboost.com, 5 Oct 2026
Data security: Chartboost says its SDK encrypts collected data in transit and lets customers request deletion of specific user data. · docs.chartboost.com, 5 Oct 2026
Demand sources: Chartboost says publishers can access its direct programmatic demand plus more than 33 demand sources. · docs.chartboost.com, 5 Oct 2026
Fees: Chartboost says it charges no demand fees for its bidding partners and that the winning bid equals publisher earnings. · docs.chartboost.com, 5 Oct 2026
Integrations: The Mediation SDK integration options listed are Android, iOS, and Unity, and the setup guide links an adapter integration manager for partner networks. · docs.chartboost.com, 5 Oct 2026
Purpose: Chartboost Mediation is a monetization solution for mobile app developers that uses bidding to increase competition for each ad impression. · docs.chartboost.com, 4 Oct 2026
Reporting: The dashboard provides real-time auction and performance data, and publishers can download customized reports or use the Mediation API. · docs.chartboost.com, 5 Oct 2026
Reporting API limit: The Mediation Reporting API is limited to 40 requests every 10 minutes. · docs.chartboost.com, 5 Oct 2026
SDK size: Chartboost states that its Mediation SDK is under 340 KB for iOS and Android, as is the Unity plug-in. · docs.chartboost.com, 5 Oct 2026
Security: Chartboost states its SDK encrypts collected data in transit and lets customers delete specific user data. · docs.chartboost.com, 4 Oct 2026
Setup: Getting started requires importing apps, selecting networks, setting up placements and ad groups, and integrating the Mediation SDK. · docs.chartboost.com, 4 Oct 2026
Support: Chartboost says Mediation publishers have direct communication channels to an account manager, product team, and support team. · docs.chartboost.com, 5 Oct 2026
Supported SDKs: The getting-started page lists Mediation SDK integrations for Android and iOS at version 5.4.0 and Unity at version 5.3.0. · docs.chartboost.com, 4 Oct 2026
Waterfall and bidding: The product supports bidding and waterfall, though individual ad partners may not support both methods. · docs.chartboost.com, 5 Oct 2026
Waterfalls: Mediation supports both bidding and waterfall setups, though some partners do not support both. · docs.chartboost.com, 4 Oct 2026
What it does: Chartboost Mediation is a monetization solution powered by bidding that lets mobile app developers increase competition for ad impressions. · docs.chartboost.com, 5 Oct 2026