Audio advertising is experiencing a renaissance driven by podcasting. The podcast advertising market has grown from EUR 2 billion in 2020 to EUR 5 billion in 2025 and shows no sign of slowing. Simultaneously, AM/FM radio still reaches 80-85% of the adult population weekly in most Western markets, making it one of the broadest-reach traditional media channels still in operation.
Radio advertising strengths: mass reach at low CPM (EUR 2-8 in Germany), frequency building within specific geographic areas, morning and commute dayparts with high audience attention, and cost-effective local activation. Radio is a tactical channel best used for promotional periods, local market launches and frequency building against a defined demographic.
Podcast advertising formats: host-read ads (the host personally endorses the product in their own voice, typically 60-90 seconds, highest recall and trust) and pre/mid/post-roll (produced spots inserted dynamically into episodes). Host-read ads command premium pricing (CPMs of EUR 25-60) but deliver recall rates 3-4x higher than produced spots. Dynamic ad insertion technology now allows programmatic buying of podcast inventory at scale.
Targeting in podcast advertising is more sophisticated than radio: genre targeting (true crime, business, health, comedy), demographic targeting from first-party publisher data, and household-level targeting from smart speaker data. Combined with a strong host-read creative and an offer code for tracking, podcast advertising delivers measurable ROI that radio advertising historically could not.
