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Chartboost Mediation
What it is
Chartboost Mediation is a free monetization solution for mobile app developers on Android, iOS, and Unity. It runs real-time bidding across more than 50 demand sources in a unified auction and shows why a particular bid won. Developers can use bidding or waterfall setups, although some partners do not support both. Reporting filters cover app, placement, ad type, network source, country, and date range, with custom reports available. One-click A/B testing compares bidding, non-bidding, and other monetization arrangements. Chartboost bidding supports banner, rewarded video, and interstitial ads. Listed partners include AdMob, Amazon Publisher Services, AppLovin, InMobi, Meta Audience Network, Unity Ads, and others. Chartboost says bidding partners have no demand fees and the winning bid equals publisher earnings. SDK integrations list Android and iOS version 5.4.0 and Unity version 5.3.0. The SDK and Unity plug-in are each under 340 KB.
For and against
For
- Free plan for mobile developers
- Real-time bidding across 50+ demand sources
- Filters and custom analytics reports
- Supports bidding and waterfall setups
- Banner, rewarded, and interstitial formats
Against
- Some partners lack both bidding and waterfall
- Reporting API limited to 40 requests per 10 minutes
- Consent platforms may require custom adapters
- Collected identifiers and performance data may be shared
The verdict
Chartboost Mediation combines bidding, waterfall support, reporting, and A/B testing in a free offering. Its partner-method differences, API limit, and consent requirements are important setup considerations.
Who it suits
It suits mobile developers seeking ad mediation, bidding, reporting, and rewarded-ad support across Android, iOS, or Unity.
On the record
- A/B testing
- A one-click toggle lets publishers test bidding against non-bidding or another monetization setup.docs.chartboost.com · read 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 · read 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 · read 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 · read 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 · read 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 · read 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 · read 5 Oct 2026
- Demand sources
- Chartboost says publishers can access its direct programmatic demand plus more than 33 demand sources.docs.chartboost.com · read 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 · read 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 · read 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 · read 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 · read 5 Oct 2026
- Reporting API limit
- The Mediation Reporting API is limited to 40 requests every 10 minutes.docs.chartboost.com · read 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 · read 5 Oct 2026
- Security
- Chartboost states its SDK encrypts collected data in transit and lets customers delete specific user data.docs.chartboost.com · read 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 · read 4 Oct 2026
- Support
- Chartboost says Mediation publishers have direct communication channels to an account manager, product team, and support team.docs.chartboost.com · read 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 · read 4 Oct 2026