IronSource is a mobile growth platform for app developers. It operates as part of Unity Grow following Unity’s acquisition in November 2022. The platform brings together app monetization, ad mediation, and user acquisition tools within the Unity ecosystem, aimed primarily at game developers who want to manage growth and revenue from one place.
LevelPlay mediation
LevelPlay is IronSource’s ad mediation platform and its core active product. It connects publishers to 25+ leading ad networks through a single SDK integration, with in-app bidding replacing traditional waterfall setups. All connected demand sources compete for each impression simultaneously, which typically improves yield compared to sequential auction models.
LevelPlay includes A/B testing for monetization strategy, real-time reporting, and Ad Quality controls that let publishers review and manage which ads show to their users. For developers working in Unity, the SDK integrates directly through the Unity Editor.
User acquisition
IronSource Ads offers UA campaigns optimized toward installs and in-app events. ROAS-optimized campaigns automate bidding toward return targets using machine learning. UA campaigns connect to supply through LevelPlay’s publisher network, giving access to in-app inventory from direct publisher relationships.
Unity ecosystem integration
As part of Unity Grow, IronSource connects with Unity’s game engine, analytics, and cloud services. This integration makes it most practical for game developers already building on Unity, where mediation, UA, and development tools share the same workflow. The platform also includes Supersonic, a publishing arm supporting hypercasual and casual game developers.
Who it’s for
IronSource is built for mobile game developers and app publishers who want integrated monetization and user acquisition. The mediation platform is the primary active offering, with LevelPlay providing the infrastructure for in-app bidding across a large network of demand partners.