Grow your audience where they're already listening.

Promoting your podcast in Castro helps you grow your audience by getting it in front of the right listeners.

Promote Your Podcast

$99 USD

7 Day Promo

15,000 - 20,000
132 - 230
30 - 100


$199 USD

15 Day Promo

30,000 - 40,000

265 - 460

60 - 200


$399 USD

30 Day Promo

60,000 - 80,000
530 - 920
120 - 400


Discover Promotion

Large format custom featured artwork at the top of the discover tab with the ability to pitch listeners as well as link outside Castro. Minimum spend $750 for 50,000 Impressions ($15 CPM). Subscriber acquisition cost is between $1.3 - $4.

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Terms of Sale

Estimated performance of promotions are updated from time to time based on current promotion performance, your promotion performance may vary. Impression rates vary over time, and subscription rates are affected by the perceived value of your podcast.

All sales are final. No refunds.

The price and quantity of promotions sold may change from time to time.

Castro may make minor changes to your promotion with regard to art and copy to fix mistakes or improve performance of your ad.

Once you purchase a promotion, it must be approved by Castro before it goes live, which typically occurs within 1 business day when inventory is available. Castro reserves the right to decline promotion of your podcast for any reason, examples being (but not limited to) payment issues, quality, or content.

Promotional copy and images must be appropriate for everyone.

Please contact with any questions.