Overview

Audiohook runs a performance advertising platform brands and agencies use to buy podcast, streaming audio, and digital radio inventory. An advertiser sets a conversion goal and a target cost per conversion, and the platform buys across fragmented supply to hit it, using audience and contextual signals, podcast transcription to keep placements brand-safe, and reinforcement learning to move bids in flight. Results land in dashboards backed by an attribution model built for audio rather than borrowed from display. Unlike the impression-based buying that dominates the channel, advertisers pay only for verified conversions, so a campaign that does not convert generates no invoice. The company's goal is to make audio measurable enough for direct-response budgets by tying every dollar to an outcome.