Back in June, the Interactive Advertising Bureau released a report estimating that the podcast industry generated $479 million in 2018 and is projected to make $1 billion by 2021. Not only is this a tiny pittance compared to the money generated by other mediums like TV and search, but podcasting has also been limited by its over-reliance on advertising.

Unlike, say, Netflix or The New York Times, most podcast companies have struggled to diversify their revenue beyond advertising, and most major podcast apps don’t provide a way for podcasters to directly collect money from their listeners.

But several companies, like Spotify and Luminary, are attempting to bundle exclusive podcasts and sell access to them behind a subscription paywall. Other platforms assist individual podcasters in converting their listeners into paying subscribers.

The company Glow fits into the latter category. Founded a little over a year ago, Glow developed technology that allows a podcast’s paying subscribers to listen to paywalled episodes on their podcast player of choice. I recently interviewed its co-founder Amira Valliani about how she’s solving the paywall problem and why she thinks paid podcast subscriptions will eventually scale.

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