Podcast advertising vs radio advertising: what's the difference?
Podcast and radio advertising both put your brand in someone's ears, and that's roughly where the similarity ends.
The short answer: radio sells mass simultaneous reach at a low CPM. Podcast advertising sells attention, trust, and measurability, with targeting and attribution that radio structurally can't match. Most brands that test both end up using them for different jobs.
Here's how they actually compare, and when each one earns its place on a media plan.
How podcast and radio advertising differ
Audience and attention
Radio is background media. It plays in cars, shops, and kitchens to whoever happens to be there. Podcasts are chosen media: the listener picked this show, this episode, often wearing headphones. Acast research found 64% of podcast listeners pay full attention to podcast ads, a number radio doesn't get close to.
Targeting
Radio targets by station format, daypart, and geography. That's it. Podcast advertising with dynamic ad insertion targets by show genre, listener demographics, interests, location down to city level, and first-party audience segments. You're buying audiences, not airtime.
Trust and delivery
A radio spot is read by an announcer between songs. A host-read podcast sponsorship is delivered by someone the listener has spent dozens of hours with. In Acast's research with Nielsen, 80% of listeners said they trust recommendations from hosts they listen to. That's closer to influencer marketing than to a drive-time spot.
Measurement
Radio attribution still leans on brand lift surveys and matching sales data to broadcast schedules. Podcast campaigns support pixel-based attribution, promo codes, and vanity URLs, so you can track conversions to the campaign, show, and ad level. If your CFO asks what the campaign returned, podcasting can answer with numbers.
Cost
Radio CPMs are lower, typically in the low single digits to low teens depending on market. Podcast CPMs run roughly $15 to $30 for produced ads and $25 to $40 for host-read sponsorships. You pay more per thousand, but you're paying for listeners who are actually listening. On results rather than reach, the math favors podcasts: an Acast study with Dentsu found podcast advertising delivers a long-term ROAS of 4.9x, against a 3.7x average across media.
When radio still wins
Honest answer: sometimes. If you need maximum same-day reach in a local market (a weekend sale, a store opening), radio's live mass audience is hard to beat. Heavy radio buys also still make sense for older demographics in markets where podcast listening skews younger.
But that gap closes every year as listening shifts. The question for most brands isn't podcast or radio, it's whether your audio budget split still matches where your audience's ears actually are.
Can you run both?
Yes, and many brands should. A practical split: radio for broad local awareness, podcasts for targeted reach, engaged storytelling, and measurable response. Reusing audio creative across both keeps production costs down, though podcast-specific creative (especially host-reads) consistently outperforms repurposed radio spots.
For a deeper look at planning, formats, and pricing, see our complete guide to podcast advertising, or get started directly through Acast's ad platform.
Frequently asked questions
Is podcast advertising more effective than radio?
For engagement, targeting, and measurable return, yes: podcast advertising delivers higher attention and a documented 4.9x long-term ROAS, above the cross-media average. Radio remains stronger for cheap, broad, same-day local reach.
Is podcast advertising more expensive than radio?
Per thousand impressions, usually. Podcast CPMs run $15 to $40 depending on format, while radio CPMs are often lower. But podcast impressions reach listeners who chose the content and are paying attention, which typically produces a better cost per result.
How is podcast ad targeting different from radio?
Radio targets by station, daypart, and market. Podcast advertising targets actual audiences: demographics, interests, genre, and precise geography, delivered through dynamic ad insertion across thousands of shows.
Can I use my radio ad in a podcast campaign?
Technically yes, and it can be a low-cost way to test the channel. But podcast-native creative, especially host-read sponsorships, consistently outperforms repurposed radio spots because it matches how people listen.
Podcast and radio advertising both put your brand in someone's ears, and that's roughly where the similarity ends.
The short answer: radio sells mass simultaneous reach at a low CPM. Podcast advertising sells attention, trust, and measurability, with targeting and attribution that radio structurally can't match. Most brands that test both end up using them for different jobs.
Here's how they actually compare, and when each one earns its place on a media plan.
How podcast and radio advertising differ
Audience and attention
Radio is background media. It plays in cars, shops, and kitchens to whoever happens to be there. Podcasts are chosen media: the listener picked this show, this episode, often wearing headphones. Acast research found 64% of podcast listeners pay full attention to podcast ads, a number radio doesn't get close to.
Targeting
Radio targets by station format, daypart, and geography. That's it. Podcast advertising with dynamic ad insertion targets by show genre, listener demographics, interests, location down to city level, and first-party audience segments. You're buying audiences, not airtime.
Trust and delivery
A radio spot is read by an announcer between songs. A host-read podcast sponsorship is delivered by someone the listener has spent dozens of hours with. In Acast's research with Nielsen, 80% of listeners said they trust recommendations from hosts they listen to. That's closer to influencer marketing than to a drive-time spot.
Measurement
Radio attribution still leans on brand lift surveys and matching sales data to broadcast schedules. Podcast campaigns support pixel-based attribution, promo codes, and vanity URLs, so you can track conversions to the campaign, show, and ad level. If your CFO asks what the campaign returned, podcasting can answer with numbers.
Cost
Radio CPMs are lower, typically in the low single digits to low teens depending on market. Podcast CPMs run roughly $15 to $30 for produced ads and $25 to $40 for host-read sponsorships. You pay more per thousand, but you're paying for listeners who are actually listening. On results rather than reach, the math favors podcasts: an Acast study with Dentsu found podcast advertising delivers a long-term ROAS of 4.9x, against a 3.7x average across media.
When radio still wins
Honest answer: sometimes. If you need maximum same-day reach in a local market (a weekend sale, a store opening), radio's live mass audience is hard to beat. Heavy radio buys also still make sense for older demographics in markets where podcast listening skews younger.
But that gap closes every year as listening shifts. The question for most brands isn't podcast or radio, it's whether your audio budget split still matches where your audience's ears actually are.
Can you run both?
Yes, and many brands should. A practical split: radio for broad local awareness, podcasts for targeted reach, engaged storytelling, and measurable response. Reusing audio creative across both keeps production costs down, though podcast-specific creative (especially host-reads) consistently outperforms repurposed radio spots.
For a deeper look at planning, formats, and pricing, see our complete guide to podcast advertising, or get started directly through Acast's ad platform.
Frequently asked questions
Is podcast advertising more effective than radio?
For engagement, targeting, and measurable return, yes: podcast advertising delivers higher attention and a documented 4.9x long-term ROAS, above the cross-media average. Radio remains stronger for cheap, broad, same-day local reach.
Is podcast advertising more expensive than radio?
Per thousand impressions, usually. Podcast CPMs run $15 to $40 depending on format, while radio CPMs are often lower. But podcast impressions reach listeners who chose the content and are paying attention, which typically produces a better cost per result.
How is podcast ad targeting different from radio?
Radio targets by station, daypart, and market. Podcast advertising targets actual audiences: demographics, interests, genre, and precise geography, delivered through dynamic ad insertion across thousands of shows.
Can I use my radio ad in a podcast campaign?
Technically yes, and it can be a low-cost way to test the channel. But podcast-native creative, especially host-read sponsorships, consistently outperforms repurposed radio spots because it matches how people listen.
