AdvertiseCast vs Libsyn Ads:Which is more popular?
In September 2026, Libsyn Ads had more branded searches than AdvertiseCast among podcast sponsorship marketplaces worldwide. Libsyn Ads had about 720 branded searches, while AdvertiseCast had 90. Libsyn Ads made up 57.6% of all podcast sponsorship marketplace searches we track, and AdvertiseCast accounted for 7.2%. When we asked ChatGPT and Google AI Overviews about podcast sponsorship marketplaces, AdvertiseCast and Libsyn Ads each appeared in three of the five answers. Libsyn Ads was mentioned before AdvertiseCast in three out of five answers.
Who do people search for more?
Libsyn Ads, about 8 searches for every 1 for AdvertiseCast
Who does AI mention more?
Both were mentioned in 3 of 5 answers.
Who does AI recommend more?
Libsyn Ads, named ahead of AdvertiseCast in 3 of 5 answers
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Top podcast sponsorship marketplaces in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, AdvertiseCast was mentioned in three out of five: in one of the three ChatGPT answers and in both Google AI Overviews. Libsyn Ads was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Libsyn Ads was listed before AdvertiseCast in three out of five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Gumball1st- Libsyn Ads2nd
AdvertiseCast3rd
Podcorn4th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Gumball5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Libsyn Ads3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- AdvertiseCast3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Podcorn1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about podcast sponsorship marketplaces
5 answers
Asked ChatGPT
“Which podcast sponsorship marketplace should I use?”
Asked ChatGPT
“What are the best podcast sponsorship marketplaces?”
Asked ChatGPT
“What's the best podcast sponsorship marketplace for a growing podcast?”
Searched Google, AI Overview
“podcast sponsorship opportunities”
Searched Google, AI Overview
“podcast ads marketplace”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is AdvertiseCast or Libsyn Ads more popular in search?
This chart shows how often people search Google for AdvertiseCast and Libsyn Ads by name. Each line represents a brand's share of searches for all four podcast sponsorship marketplaces we track, month by month, from English-language searches worldwide.
Share of searches by month for Libsyn Ads, AdvertiseCast. The figures are in the table below the chart.
View monthly share of searches table
| Month | Libsyn Ads | Podcorn | AdvertiseCast | Gumball |
|---|---|---|---|---|
| Oct 2025 | 24.2% | 54.5% | 12.9% | 8.3% |
| Nov 2025 | 21.8% | 60.5% | 11.8% | 5.9% |
| Dec 2025 | 21.3% | 59% | 13.9% | 5.7% |
| Jan 2026 | 20% | 55.4% | 16.2% | 8.5% |
| Feb 2026 | 36.2% | 44.2% | 12.9% | 6.7% |
| Mar 2026 | 23% | 51.8% | 18.7% | 6.5% |
| Apr 2026 | 32% | 48.4% | 13.9% | 5.7% |
| May 2026 | 28% | 51.6% | 15.1% | 5.4% |
| Jun 2026 | 28.6% | 52.7% | 12.5% | 6.3% |
| Jul 2026 | 26% | 48% | 17% | 9% |
| Aug 2026 | 23.3% | 53.3% | 15.6% | 7.8% |
| Sep 2026 | 57.6% | 31.2% | 7.2% | 4% |
How has the AdvertiseCast and Libsyn Ads comparison changed over the last 12 months?
3 findings
- Libsyn Ads was ahead of AdvertiseCast in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, AdvertiseCast’s share of searches among podcast sponsorship marketplaces worldwide moved from 12.9% to 7.2%, and its estimated monthly branded searches moved from 170 to 90.
- Across the 12 months ending September 2026, Libsyn Ads’ share of searches among podcast sponsorship marketplaces worldwide moved from 24.2% to 57.6%, and its estimated monthly branded searches moved from 320 to 720.
How did search popularity change for podcast sponsorship marketplaces worldwide in September 2026?
2 changes
In September 2026, Libsyn Ads overtook Podcorn to become the leader among podcast sponsorship marketplaces worldwide, with 57.6% of the searches.
In September 2026, AdvertiseCast lost share of searches among podcast sponsorship marketplaces worldwide, from 15.6% to 7.2%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using AdvertiseCast’s and Libsyn Ads’ names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
AdvertiseCast
1 branded search term
- advertisecast
Libsyn Ads
1 branded search term
- libsyn ads
Other head-to-heads among podcast sponsorship marketplaces
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