Unity reports an increase in revenue from its engine and has decided to discontinue the IronSource ad network to prioritize the Vector AI user-acquisition platform

unity logo against a dark background

Image credit: Unity

Unity has declared its decision to discontinue its IronSource advertising and user-acquisition network and is considering divesting its mobile games publisher, Supersonic, known for titles like Bridge Race, Going Balls, and Build A Queen. This strategic move is intended to streamline the company's operations, emphasizing growth areas such as the AI-driven ad network, Vector. Details of this initiative were highlighted in Unity's recent investor briefing.

This announcement follows a noticeable decline in IronSource's performance contrasted with the robust growth of Vector. Unity's fiscal results for 2025 revealed a "mid-teen sequential quarterly revenue growth" for Unity Vector, accounting for 56% of their Grow Solutions revenue. In comparison, IronSource's revenue suffered, coinciding with the departure of its founder, Tomer Bar-Zeev.

Vector, which debuted in 2025, is anticipated to sustain significant growth each quarter, outperforming expected results according to Unity CEO Matt Bromberg in the investor report. The IronSource network is scheduled to cease operations on April 30th, 2026.

As for Supersonic, the planned divestment parallels AppLovin’s strategic withdrawal from game publishing, as reported in their recent sell-off, to focus on its highly successful AI ad product, Axiom – a competitor to Unity's Vector.

Unity continues to be a favored platform for developing games on PCs, consoles, and mobile devices. Nonetheless, the latest GDC survey indicates a shift with increased preference for both Godot and Unreal Engine, which caught up in usage with Unity for the first time. Unity's Create Solutions division reported a $13 million year-over-year revenue increase, totaling $165 million in Q4 2025.

Unity's 2022 merger with IronSource reportedly led to internal challenges due to incompatible workplace cultures. This merger also played a role in the controversial Runtime Fee policy of 2023, which proposed charging developers per installation unless they adopted IronSource's mediation platform. The policy's announcement led to an immediate backlash and boycott, prompting a quick retraction and the subsequent exit of CEO John Riccitiello.

By 2024, nearly all key figures from IronSource had left Unity, shortly after the company reduced its workforce by 25% in a restructuring effort. Additional layoffs took place in the following year.