Appstock

Appstock operated a B2B mobile adtech model centred on in-app inventory monetisation. Publishers and developers integrated the company’s SDK or connected via mediation, allowing Appstock to route ad requests, match demand, and optimise fill, CPM, and traffic quality. Value was created by improving monetisation efficiency for publishers and campaign performance for advertisers through data unification, request-level optimisation, and reporting.

Appstock was a UK-based mobile advertising technology company operating a programmatic monetisation platform for app publishers and mobile advertisers. Based on the product evidence, its core offering functioned primarily as an in-app supply-side monetisation layer, using a proprietary decision engine and SDK integrations to match demand with publisher inventory, optimise yield, and provide real-time reporting across video, display, and native formats.

The business appears to have generated revenue from media transaction economics rather than disclosed software subscription pricing, likely taking a margin or revenue share on advertiser spend flowing through its platform. Its direct customers were mobile app publishers, developers, game studios, advertisers, and demand-side teams. Although the operating business materials remain visible, the UK company record shows the entity was dissolved on 17 February 2026 following compulsory strike-off.